Roon Labs

Since the release of Roon ARC, the mobile app that transforms your personal Roon library into a bespoke streaming service, many of you have asked what you need to get the most out of the surprise bonus bundled with Roon 2.0.

As a result, there are many more Roon customers with AudioQuest DragonFlys and Meze 99 series headphones than there were in the summer! Nothing compares to the intimate listening space created by pairing quality headphones with a worthy DAC/Amp. They reconnect us with our most loved artists, albums, and recordings and make recent musical discoveries more engaging. 

The 99 Classics are affordable entry points into primo portable audio that gained Meze troves of admirers. Immediately upon their release seven years ago, requests for an open-back version began pouring in. So when early prototypes of a new open-back, walnut-trimmed Meze headphone were spotted at audio shows, feverish excitement and anticipation broke out among the open-back Classics petitioners and headphone intelligentsia.

But there’s just one thing…

The 109 PRO isn’t simply a 99 Classic in disguise

And that’s great news! Yes, an open-back 99 would have been cool. But we know it’s not Meze’s style to rest on prior success; they weren’t going to repeat themselves – no matter how much people would have loved them for it. I mean, we’re talking about the same folks that released the revolutionary closed-back Liric model right on the heels of their incredible new flagship Elite. They’re not going to follow trends or do what’s expected.

The only thing anyone can reliably predict from Meze is that during waking hours in Romania, they’re busy figuring out new ways to make music listening more engaging and emotionally resonant. The rest will be a surprise and delight – just like the 109 PRO.

Technical Design

Technical engineering for 109 PRO began by returning to the basics: carefully selected materials, exacting craftsmanship, and precision assembly. The result is an in-house designed and produced 50mm dynamic driver assembly featuring a dual membrane diaphragm made from a cellulose-carbon fiber composite dome surrounded by a Beryllium-coated polymer torus. Circling that is a copper-zinc stabilizer ring alongside an efficient neodymium magnet encased inside a precision machined aluminum frame.

That tech translates to music like so… the cellulose composite W-shaped dome produces highs with incredible detail, clarity, and definition, while the Beryllium-coated torus contributes to faster transient response and greater dynamic range. It pairs with the ring-shaped stabilizer to suppress unwanted resonance and vibration, reducing harmonic distortion. The precision-machined aluminum frame guarantees a perfectly flat surface to affix the magnet and diaphragm assembly improving stability and performance. The completed transducer is placed at a precise angle and distance from the ear inside the open earcup housing.

It’s an entirely different headphone with innovative technology and engineering that sets it apart from other Meze offerings. And even more impressively, its 40 Ω impedance rating and high sensitivity mean it can be driven using the headphone out of most devices.

Aesthetics

At first glance, the 109 PRO exudes a strong visual resemblance to the 99 Classics. That similarity undoubtedly contributed to the notion that the headphone gods had smiled on us and an open-back 99 series headphone had descended from the clouds. But upon closer inspection, the 109 PRO’s unique traits, technical characteristics, and singular beauty are revealed.

Old-growth black walnut reappears for an elegant second life as Meze earcups. The 109’s are scaled up to accommodate and reveal the larger dynamic driver, producing one of Meze’s most open patterns. The ornate grill design inside the earcup and matching rose gold hardware create a striking contrast against the jet-black lightweight spring steel frame, earcup grill insert, and accompanying noir appointments. The self-adjusting vegan leather headband distributes weight evenly to relieve pressure for a better fit. Memory foam and soft, breathable velour earpads envelop the ears, creating a luxurious listening space.

Comfort is exactly what you’d expect from Meze, which is to say the 109 PRO is absurdly comfy. In fact, it’s even more comfortable than the 99 Classics – that’s something I didn’t expect to say about any headphones. They feel nearly weightless, are pleasantly snug, and hug the head perfectly, requiring no adjustment. Meze should think about branching out into making earmuffs for fans of their headphones that live in cold environments. It doesn’t even get that cold where I live, but I don’t think I could resist them. 

The 109 PRO continues Meze Audio’s unmistakable artistic expression with stunning visual appeal that’s equaled only by its musical voice.

Sound

When Meze sets out to produce a new headphone, they focus on what they’d like the wearer to experience when listening to music and proceed with a tuning informed by the heart, emotion, and immersive musical connection. It’s one of the things that set Meze apart. The 109 PRO nails that sonically; it’s tastefully tuned for enjoyable engaged listening over strict technical neutrality. 

Lower bass frequencies offer excellent extension with a slight shelf in the low and mid-bass range. That tuning adds nice fullness and warmth to the lows and compensates wonderfully for the typical thinner bass response of open-back designs. The dynamic driver produces great punch and adds a muscular body to the lows, while the open-back design eliminates any possibility of bass loading. 

The midrange is very smooth and linear, up to around 3-5kHz. Precisely tuned presence provides shimmer to vocals and instruments, plus a wonderful sense of space and headroom. I’m unsure if it’s a light boost or a subtle cut to the preceding frequencies – but it’s very tastefully done. I didn’t detect any resulting vocal sibilance or sharpness to instrumentation.

Highs also have some air adjustment around 10-12kHz, adding a brilliant, lively top-end. How well the 109’s upper mid and treble tuning works will vary depending on what you’re listening to. Early 60s pop mixed for transistor and car speakers, thinner lively mixes of the 80s, and lo-fi punk or indie tracks may feel slightly aggressive depending on their individual production traits.

We poured our soul into every aspect of its design, and it always brings a smile to my face. I think right now this is, of all our headphones, the one I listen to most.

Antonio Meze on the 109 PRO

However, after letting the 109 PROs play for about 10 hours over three consecutive nights, the top end became silky smooth and vivid. Buyers who feel tentative about the 109’s highs should give them about 40 hours of playtime before judging the tuning. After that, you’ll be hooked and won’t dream of letting them go.

Meze’s tuning decisions have a proven track record and are well-received; the same holds true here. Overall, the 109 PRO exhibits a wonderfully pleasant and smooth voice with lush, tastefully warm lows and linear mids, giving way to lovely presence and shimmer in the upper mids and treble for incredible detail, clarity, and definition. They deliver great punch and astounding dynamics, the soundstage is spacious, even three-dimensional on some tracks, the resolution is top-notch, and the imaging is genuinely mesmerizing.

To my ears, the 109 PRO blends traits of the 99 Classics, Liric, and Elite – which packs a lot of character and performance into a single set of cans and makes their price point tremendously appealing.

Meze’s passion-driven approach to design and conception underpins everything they do; over 30 different prototypes of the 109 PRO were produced before they felt they’d achieved the perfect harmony of sound, comfort, and materials. That dedication shines through in the final version.

At The Munich High-End show, Antonio Meze said, “We poured our soul into every aspect of its design, and it always brings a smile to my face. I think right now this is, of all our headphones, the one I listen to most.”

Listening Notes

For focused listening, I drove the 109 PROs with the headphone output of MacBook Air, then added the DragonFly Black and later Mytek’s exquisite Liberty DAC II to get a sense of how well 109 played with a range of devices. Their 40 Ω impedance rating and high sensitivity delivered engaging listening across everything I used for testing.

Brian Eno – Apollo/FOREVERANDEVERNOMORE (MacBook Air laptop out, DragonFly Black, Mytek Liberty DAC II)

I was thoroughly stunned by the detail retrieval and soundstage I experienced when I queued up Under Stars from Brian Eno’s Apollo: Atmospheres and Soundtracks using the headphone out of my MacBook Air. The 109’s presentation captured the vastness and sensation of drifting weightlessly through space much more convincingly than I expected and proved how easy the 109s are to drive. 

Then Roon served up Eno’s new record FOREVERANDEVERNOMORE as a follow-up. Even with this simple setup, the results were captivating, drawing me into the atmospheric performances. Vocals exhibited fabulous presence and clarity.

Eager to entice even more detail from the 109s, I plugged into the Dragonfly Black and found a quiet space to pull up ARC for a second listening. The soundstage shifted to an immense dark background that completely enveloped me in sound. The music formed a dome above and even slightly behind my head. The 109s skillful enhancement in the upper mids and treble worked exceptionally well with these selections. If I had been in a blind listening test, I would have easily believed I was plugged into a high-end tube DAC/amp rather than the entry-level offering of the DragonFly line.

After the DragonFly Black, I excitedly plugged the 109s into the Mytek Liberty DAC II. I eagerly pulled and reconnected connections like an over-caffeinated switchboard operator. Listening through the Mytek is as close as I’ll ever come to being inside the lunar modules in the documentary. The jump in detail, imaging, resolution, soundstage, and character of Under Stars was positively revelatory. The extra amperage the Mytek provided revealed a landscape of subtleties. I’ve listened to Apollo numerous times; it’s a go-to ambient favorite. But hearing it this way provided a fresh perspective that was immensely enjoyable. 

On I’m Hardly Me from FOREVERANDEVERNOMORE, Darla Eno‘s delicate vocals were layered with effects. The instrumental separation was so transparent that the brief pause between the clean vocal and its drapery was clearly detectable. The free-flowing synthesizer bed was as organic as wind through trees. Brian Eno’s vocals oozed like warmed honey in a cup of tea. It felt telepathic, a voice painting images in the mind as exotic electronic birds sailed through the space behind the listener. I can’t imagine a better way to experience this album for the first time.

Jackie McLean – Love and Hate from Destination Out (DragonFly Black)

Destination Out is a stand-out favorite among several stellar albums by Jackie McLean. I often played this lead-off track, Love and Hate, when I hosted a jazz radio show years ago. Like nearly all Blue Note albums, the lineup is perfectly honed to the vibe of the material. 

Larry Ridley and Roy Haynes provide a sparse yet ample rhythmic foundation with plenty of room for Grachan Moncur III’s soulful trombone breaks. The star performance on this piece for me is Bobby Hutcherson’s vibraphone fills. The 109 PRO showcases their resonance and decay lusciously. Each percussive mallet strike is rendered with snappy attack before resolving completely. Jackie’s expressive alto lines are simultaneously soulful and searching, weaving laid-back lines with brisk flurries of cascading notes.

McLean’s playing was always just a touch sharp. Miles Davis once hilariously commented, “Jackie McLean plays like somebody’s standing on his foot!” The presence and air of the 109s walk the line perfectly here, exhibiting great control while showing off the texture in McLean’s tone without becoming strident. 

Even more impressive was the overall grandeur the track acquired. Rudy Van Gelder’s studio in Englewood Cliffs is an immense cathedral-like space with open rafters and a 39-foot ceiling built to evoke a spiritual response from artists who recorded there. The DragonFly Black/109 PRO combination thoroughly conveyed the room’s contribution to the recording and performance.

The Beatles – Within You Without You/Tomorrow Never Knows from Love (Mytek Liberty DAC II)

For some Beatles fans, the song mashups of the Love album, crafted to accompany the Cirque du Soleil production of the same name, were a near heretical misuse of the coveted original recordings when the album was released. Now several deluxe edition boxsets and outsourced album remixes later, the versions are far less controversial. Love’s results feel consistent with The Fab Four’s technical curiosity, openness to studio experimentation, and recording innovation. This selection deftly welds John Lennon’s avant-garde Revolver closer to George Harrison’s eastern spirituality, and mysticism informed Sgt. Pepper centerpiece. 

The track shows off the finesse of the 109s sub-bass extension as the song plunges to the center of cosmic consciousness at 1:03 in – whisking us into the technicolor spiral as the floor drops out from under us. The originals were an intoxicating blend of exotic instrumentation in their own right; when conjoined, they’re a captivating tapestry of swirling sound layers. The 109s make pursuing them through the mix deliriously fun and exciting. The thundering synergy of bass and drums is thick and rollicking in places, but the 109’s expert low-end tuning contains it well and keeps everything out of the mud.

John’s opening lines from the demo version of Tomorrow Never Knows drift diaphanously toward the listener before George’s ethereal vocals levitate just above the center of the forehead. Tape loops, strings, Indian hand drums, and mellotron weave a sonic kaleidoscope before an array of soft effects and detached elements from Lucy in the Sky With Diamonds ushers the dreamy arrangement to a close. The 109 PRO joined the spellbinding dance effortlessly. It was all too groovy, man.

Conclusion

The 109 PRO melds a delightfully pleasant and smooth voice with warm, tasteful lows and linear mids that give way to lovely presence and shimmer in the upper mids. Highs are tuned for incredible detail, clarity, and definition. The revolutionary in-house driver assembly delivers great punch and astounding dynamics with a spacious soundstage, top-notch resolution, and genuinely mesmerizing imaging in an acoustically open design that conveys breathtaking musicality.

Meze’s dedication to achieving the ideal harmony of sound, comfort, and timeless design is embodied fully within the 109 PRO. Like all Meze headphones, it is a beautiful piece of sound art that expertly fuses visual beauty with an equally alluring sound signature and maximum comfort for fully immersive, engaging listening without distractions. Loads of character, performance, and value is packed into the 109 PRO for the price.  I encourage anyone looking for high-quality open-back headphones with premium appointments and unmatched sound to give it a close listen.

Additional observations of Note

• Aftermarket cables may not be compatible with the narrow cable input canal of the 109 PRO. 
• The 109 PRO’s out-of-box driver tightness dissipates rather quickly. To hasten the process, allow them to play overnight for a few consecutive nights. They’ll sound magnificent.
• If the fit of the spring steel headband is too snug, grasp the earcups and gently pull them outward a few times before putting them on.
• Check out the 109’s included brochure for a closer look at the innovative technology inside the model.
• The 109 PRO is a highly easy-to-drive headphone, but pairing it with a quality DAC/amp will result in even more musical character and enjoyment and bring its full potential to life.

Tech Specs

• Driver Type: Meze in-house dynamic
• Diaphragm Type: Dual Membrane Diaphragm – combination of Beryllium-coated polymer and cellulose + carbon fiber composite
• Transducer Size: 50mm
• Frequency Response: 5Hz – 30KHz
• Sensitivity: 112dB SPL at 1KHz, 1mW
• Impedance: 40 Ω
• Weight: 13 oz without cables
• Materials: Black walnut wood, zinc, manganese steel, vegan leather, velour, and memory foam. 
• Warranty period: 2 years

What’s in the Box

• Meze 109 PRO open-back headphones
• Case: Hard EVA pouch
• 1.5 m dual mono to single-ended 3.5mm soft TPE cable
• 3 m dual mono to single-ended 3.5mm soft TPE cable
• 3.5mm-to-1/4″ adapter
• Cable pouch
• 109 PRO brochure

Don’t worry; a new DragonFly DAC hasn’t slipped in under your radar undetected. That’s news that would be difficult to miss considering their popularity. Instead, we’re highlighting an amusing paradox that sometimes affects gear reviews. Some devices continue to excite and spark revelations long after the review is written and published. 

It’s most common when discussing feature-rich equipment with app-based controls and functionality. But this time is quite different. The AudioQuest Dragonfly Red has no buttons, no settings to navigate… not even a power cord. Despite its simplicity, its full potential is only revealed over time – like a lotus blossom opening in slow motion. 

Examining specs is helpful for understanding gears’ technical nature, but commenting on their personality requires a relationship with the devices. That personal connection uncovers more significant insights and appreciation. Complexity isn’t a requirement for excellence. Here are 18 remarkable qualities and use possibilities for the AudioQuest DragonFly Red – 9 things to know and 9 ways you can use it.

9 essential AudioQuest DragonFly character traits

1. It’s one of the easiest, and most affordable audio upgrades you can make: DragonFly is reasonably priced, simple to integrate into your system, and the difference it makes is instantly audible. That’s not always a given when upgrading audio gear, especially with low-cost equipment. If we’re being honest, we occasionally have to convince ourselves the “improvement” was worth it. That’s never the case when adding DragonFly Red; the jump in audio quality over using a mobile device’s built-in DAC is instant music to our ears.
2. AudioQuest does the work for you. Unlike some newer portable DACS, there aren’t a bunch of settings to fiddle with – that’s not a downside. Sometimes trivial features disguise mediocre sound quality. In DragonFly, AudioQuest did everything we could want. They paired the correct circuitry, added a digital filter, and tuned the audio tastefully. All we have to do is enjoy how good music sounds when using it. That’s a gift.
3. It’s not a disposable gadget: The DragonFly Red isn’t a short-lived gizmo. The entire DragonFly line is firmware upgradeable using the intuitive device manager software. There’s no planned obsolescence here. The performance and functionality of your DragonFly will continue to improve with new updates.
4. It works with almost everything: DragonFly offers plug-and-play ease of use with any playback software and is fully compatible with iOS, Android, Windows, and macOS. AudioQuest’s reasonably priced adapters provide greater connectivity with a broader range of devices.
5. Premium audio circuitry courtesy of Sabre: Sabre two-channel DACs are specifically designed for low-power applications that still demand audiophile performance. DragonFly Red sports the ESS9016 DAC chipset with an ES9601 headphone amp – circuits found in top-tier disc players and AudioQuest’s flagship DAC. The combination delivers perfect synergy and outstanding audio quality from an incredibly portable platform.
6. Maximum efficiency means more play time: DragonFly Red’s upgraded high-performance microprocessor is 77% more efficient than previous version’s. Meaning several hours more playtime with minimal mobile battery impact.
7. Increased output power means more use flexibility: DragonFly Red provides 2.1 volts of output power; that’s plenty enough punch to drive less sensitive power-hungry headphones or use it as a preamp for a power amp or active speakers.
8. Seamless integration with your OS volume control: DragonFly Red uses highly sophisticated 64-step, 64-bit, bit-perfect digital volume control that automatically syncs with your device’s OS. It becomes one with your device as soon as it’s connected.
9. Driverless simplicity: Some reviewers have complained that AudioQuest capped DragonFly resolution support at 24-bit/96kHz. But it makes driverless device compatibility possible resulting in better audio quality with greater ease of use – that’s a sweet deal!

9 more ways to enjoy better sound quality with DragonFly Red

As inveterate music hounds, the primary use scenario discussed in our DragonFly review focused on getting the best sound from our new on-the-go streaming app, Roon Arc. With daily use, we discovered more ways DragonFly Red can improve everything we listen to. Here are a few that came to mind.

1. A perfect companion for Nucleus and Nucleus Plus: our Roon Core music servers are controlled with Roon Software installed on a computer, mobile phone, or tablet. The DragonFly Red is a perfect companion device because it dramatically improves the audio quality of those control devices compared to their merely adequate onboard DACs. DragonFly’s near universal compatibility means they work with all the most frequently used devices.
2. High-Quality car audio: Since the release of ARC, I connect my iPhone to Dragonfly Red, then use a 3.5mm cable for the AUX input in my car. The improvement over using a Bluetooth connection is instantly apparent. Radio apps sound better as well.
3. Create a DIY Roon Ready Streamer/DAC/Amp: I have an iFi Zen Stream here for review. One afternoon I connected the DragonFly Red to its USB output, then ran a 3.5mm to stereo RCA cable to a set of powered Klipsch speakers. It sounded much better than I expected. The superior audio quality of the streamer and DAC fed the speakers a solid signal that improved their usual performance making them more enjoyable – and Roon Ready!
4. Instant Zone Expansion: DragonFly Red makes it so easy to add another Roon Zone. Connect it to your phone for an around-the-house or bedside headphones DAC/amp endpoint. If you aren’t a headphones listener but are interested, this is the quickest way in!
5. A reference DAC you can drop in your pocket: The DragonFly Red has an appealing memorable sonic signature. It’s a perfect portable reference DAC for auditioning headphones, powered speakers, or power amps. There’s no audible noise or distortion, and it’s dead quiet, rendering a blank slate ideal for testing gear. 
6. More realistic gaming: Our senior support tech uses his DragonFly Red to enjoy more immersive video game audio. The driverless connectivity makes it effortlessly compatible with various gaming platforms. 
7. A taste of vinyl fever: You can use DragonFly to connect a USB turntable to a pair of powered monitors for an instant hi-fi system with much better sound quality than the built-in phono preamp.
8. Bring movie effects to life: DragonFly doesn’t just make music sound better when using a computer, phone, or tablet. It makes everything sound better. Say goodbye to mediocre audio from YouTube, Netflix, and Prime Video with DragonFly Red’s superior audio processing power.
9. There’s still lots of net left: We’ve named a handful more things you can do with DragonFly Red. Some are Rooncentric, and many are not. But there’s still enough net left to scoop up less obvious use scenarios – like improved sound quality for video meetings or any of the numerous digital communication tools we’ve adopted in the last few years. Or something for self-reflection, like enjoying a podcast or audiobook. The possibilities are only limited by our imagination.

That’s the great thing about gear that’s elegant in its simplicity and just works. It improves our experience with sound in an effortless, intuitive, and uncluttered way. DragonFly Red is a beautiful little converter that does its job so well that we forget it’s there. It’s honest and unbothered, giving us a more direct and immersive connection with the media we enjoy, whether it’s music or any of the examples above. The fact that it’s one of the most accessible, easily affordable, future-proofed, and highly portable sound improvements you can make is all the more reason to climb aboard a DragonFly!

For more details, please see AudioQuest’s partners page.

Bringing it all back home

Since the release of Roon 2.0, we’ve presented a selection of mobile audio gear dedicated to helping us get the most from Roon ARC. If you’ve missed our recent notifications, ARC is a new app that transforms your Roon library into a bespoke streaming service with all your favorite Roon features. We’re pretty excited about the reception it’s received. This time out, we’re taking a different path to an enhanced ARC experience and optimal overall Roon performance by bringing it all back home to the most critical piece of any Roon system, your Roon Server.

Before we continue, let’s briefly describe the three components that make up a Roon setup; Roon Server, Roon apps, and audio devices. Those parts can be separate devices or bundled all in one. An example of the all-in-one approach is a laptop that functions as your Roon Server, software control interface, and audio device – perhaps in the form of a headphone out. This is how the majority of people start out when using Roon.

The separates method offers greater flexibility and limitless device possibilities. An example setup might consist of a Roon Nucleus, an Android or iOS tablet with the Roon app as remote, and Devialet Phantom I speakers running as a stereo pair as audio devices. Our How Roon Works video above provides an excellent overview. You can also check out the Show (off) your Roon Setup thread on our Roon Community for more ideas and inspiration.

In essence, your Roon Server is the musical superbrain of the entire Roon operation. It manages your Roon library, handles signal processing, and oversees music playback. It’s home to your Roon software, its superior audio engine, database, playlists, local music storage locations, and all the customizations and preference settings you’ve made to Roon. Whether you’re listening at home or with Roon ARC on the go, it’s the first link of your signal chain. Accordingly, it’s super important that you ensure Roon Server is parked on a machine that’s sufficiently up to scratch.

In this review, we’ll explain why Roon Nucleus and Nucleus Plus represent the best choices you can make for your Roon Server. The Roon Store’s exclusive promotional offers mean there’s no better place to purchase your Nucleus. But first, this important message.

Friends don’t let friends run Roon Server on NAS.

This has been a public service announcement from your friendly Roon Technical Support team. Yes, it’s somewhat said in jest. But it’s also a genuine plea to help you help yourself. The most compelling argument for choosing a purpose-driven server machine is the mountain of support requests from customers with underpowered NAS units or similar boxes with prohibitive native software that does nothing but fight with Roon. The same can be said for nine-year-old laptops with badly outdated operating systems.

For the love of all things music, don’t do that to yourself. An underpowered server machine is the quickest possible route to a bad Roon experience, with a shaky home network coming in as a close second. However, if your desire is to start corresponding regularly with Roon Tech Support, then it’s a great strategy.

To be clear: there’s no shaming, passing judgment, or snarky attitude in this advice. We totally get your thinking – you have an older machine sitting unused; why not make it a Roon Server. That’s all it’ll be used for; it should be fine, right? In our experience, no, not always. Ideally, you want each device in your system to perform at its best. Starting with an unstable foundation for your Roon Server will have ripple effects further downstream. That’s not what we want for you. Nucleus and Nucleus Plus provide the most solid platform possible for Roon because we built them that way.

The only server designed specifically for Roon, by Roon.   

Before you turn red and wag your finger from anticipating a sales attempt, we’re not saying you must have a Nucleus to use Roon. That’s not at all the case. 

We’re simply saying that Roon Nucleus is the best way to experience Roon. Why? It’s the only music server on the market explicitly designed to showcase Roon’s full performance potential that’s manufactured by the same team that created Roon. It immediately plants Roon on terra firma, and it’s the fastest way to upgrade the performance of an existing setup.

Alternatively, you can run Roon on a recent laptop or small form factor desktop that meets our recommendations and have great results – many of our customers do. My first Roon platform was a Mac laptop; it’s the easiest, most immediate point of entry for many of us. But much like the onboard DACs in our mobile devices, the problem is that most computers aren’t built to be high-quality audio transports. And, to make things worse, they’re distracted by a slew of behind-the-scenes activity and house circuitry that hinder performance and potentially deteriorate sound quality.

Nucleus has an advantage over other platforms because it was engineered to provide the most reliable and problem-free Roon experience. It’s designed to do one thing and do it unerringly: provide a home for Roon. All that Windows and Mac busy-work jive is eliminated. Nucleus isn’t checking emails, looking for driver updates, juggling dozens of other unessential processes, or flexing your firewall against overly curious apps. Its only concern is Roon.

It’s a gateway to plug-and-play Roon enjoyment that provides silent, high-performance, power-efficient reliability and superior audio quality in a visually striking modern enclosure. And it’s an unrivaled, dead simple to use, purpose-driven home for Roon Server! Why deny yourself that kind of luxury?

Inside the mysterious finned black box

When designing Nucleus, we ultimately decided to produce two models. They’re identical in all respects except for raw computing horsepower. We wanted to provide options based on specific needs and adjust device costs around the use scenario. A few other goals were for:

• A turn-key Roon Server that does not require a Mac, PC, or NAS
• Computing power to support Roon’s requirements now and in the future
• Ease of use – with little to no customer support needed after installation
• Software and firmware updates that are downloaded “over the air” and managed by the end-user
• Reliable and robust operation – tamper-resistant and nothing to service
• Audiophile-friendly – no fans or moving parts

Nucleus is perfect for the majority of our subscribers. Nucleus Plus is for those with more rigorous processing requirements due to library size, more simultaneous playback streams, DSP, convolution, and high-rate DSD playback. Their differences and details are below.

NUCLEUS

• Built on an optimized Intel Core i3 processor and 4GB of RAM
• Library capacity: Up to 10,000 albums (100,000 tracks)
• Pre-installed internal storage is available. 
• Multi-room streaming: Up to 6 simultaneous zones
• DSP capability: All DSP functions available in the PCM domain, certain combinations of functions using DSD, upsampling, or multi-channel processing may not be possible. 

NUCLEUS PLUS

• Built on an optimized Intel Core i7 processor with 8GB RAM
• Library capacity: Over 10,000 albums (100,000 tracks)
• Pre-installed internal storage is available. 
• Multi-room streaming: Over 6 simultaneous zones
• DSP capability: All DSP functions available
• Compatible with Crestron and Control 4 control modules

Connection points are identical in both models:

• Inputs are 2 x USB-A 3.0 for connecting an external storage drive, network attached storage, and Gigabit LAN connection.
• Outputs include 2 x USB-A 3.0, 2 x HDMI audio-only stereo and multi-channel, networked Roon Ready, Apple Airplay, and Google Chromecast devices. 

They’re bold yet simple, functional and durable yet visually stimulating – just like Roon. Both models are housed in a striking winged heat-dissipating aluminum chassis finished in automotive-grade off-black satin paint. A low-profile Roon logo is stamped on their face.

The connection points listed above, the power supply connection, and the power button are on the rear panel inside a port inspired by the hanger bays of the Death Star. Nucleus measures 10.5in (W) x 10.5in (D) x 2.5in (H). The device itself weighs about 7 lbs, depending on internal storage. Nucleus can accommodate 2.5-inch HDD or SSD drives with a maximum height of 15mm.

Setup and software updates are done via an easily accessible, intuitively simple web interface. Control of Roon is handled with the Roon Remote app. On-the-go access to your Roon Library with ARC is guaranteed by Nucleus’ always-on design. You can also connect an external disc drive to rip CDs directly to the Nucleus. 

Sonically, Nucleus and Nucleus Plus are identical. While reviewing our recent parade of DACs, I’ve discovered that a direct wired or wireless Roon Ready connection to the Nucleus is always sonically superior to connecting to the USB port of a computer remote. It’s a darker achromatic slate that feeds an entirely transparent signal to Roon’s audio engine. That neutral background allows you to shape your system’s sound signature with DACS, playback devices, amps, and speakers. Nucleus provides the optimal platform for sonic sculpting; simply choose from any of our 1000+ Roon Certified partner devices to customize your sound.

If you’re looking for the quickest, easiest, most reliable, problem-free, best-sounding, sweetest smelling, and immediately excellent Roon-designed Roon server experience… Ok, maybe not the sweetest smelling; I was just making sure you were listening. If you’d like all that other good stuff, then Nucleus is for you! A personal bonus is that Nucleus has provided snappier Roon performance and 100% problem-free operation since I added one to my setup. Now let’s look at some other benefits.

Plug yourself into the web of sound

Ok, your Roon server is sorted; now what? Now it’s all about the music. If you have a library of local music files, connect an external hard drive directly to the Nucleus, point Roon toward your network storage location, or simply drag and drop your music to the internal storage drive. Roon immediately flexes its metadata superpowers on your collection – to bring its hidden relationships and stories to life. You can tap into an even more spectacular sound repository if you don’t have many music files. Or…you can have both! Upload your music and add streaming; that’s our favorite!

As music lovers, we’re fortunate to live in a time when music is so plentiful and easily accessible. Syncing a streaming service in Roon immediately plugs you into what we call the vast web of sound. Adding streaming to Roon lets you explore and stream untold millions of lossless and Hi-Res tracks.​ It also means 24/7 access to an unrivaled array of high-resolution recordings when using Roon ARC.

TIDAL, Qobuz, or KKBOX membership places a practically limitless all-encompassing palette of music at your fingertips. Once synced, Roon’s rich features are applied to those immense catalogs delivering effortless discovery of new and forgotten favorites informed by an intimate understanding of the interconnected storylines of the music we already love.

For instance, using the TIDAL browse tab in Roon unlocks an exclusive set of personalized mixes, new album recommendations based on popularity and your listening history, and the keys to exploring new genres. TIDAL’s selection of curated playlists is easy to find and even easier to spin. Roon uses your streaming subscription to augment those features with even more recommendations, featured albums, daily mixes, and a Roon Radio experience tailored to your specific tastes. Roon accentuates the treasure hunt while its MUSE audio engine delivers a pristine, uncolored, bit-perfect listening experience.

Try to imagine another way you can have all of the above with such ease. You cannot; Roon is the only way to experience what I’ve described. And Nucleus + Roon + streaming is unquestionably the very best way to enjoy music.

Conclusion

Nucleus is an unrivaled, dead simple to use, purpose-driven home Roon Server and an immediate gateway to plug-and-play Roon enjoyment.

Its high performance, power-efficient reliability, and fanless solid-state design guarantee superior audio quality. An intuitive user interface provides effortless ease of use and support-free operation, allowing you to focus on what Roon is all about – unparalleled exploration and discovery of bit-perfect high-resolution music delivered to your listening space – wherever that may be. 

If that sounds appealing to you, we’re confident you will love Nucleus. 

Click here to customize your Nucleus at The Roon Store!

Roon Nucleus FAQs

Are these devices Roon Certified?

They’re beyond certified; Nucleus and Nucleus Plus are Roon bona fide! This is the only music server explicitly designed for Roon by the same team that created Roon. 

What does a Roon Nucleus do?

Nucleus is a device that acts as your Roon Server – it’s the foundation and the most critical piece of your Roon system. It’s where everything begins and the best way to experience Roon. It’s also dead simple to use and a perfect purpose-driven home for Roon.

Do I need a streamer with Roon Nucleus?

You don’t have to have a streamer; Nucleus will handle all that. But you may still want one, depending on your use scenario and where you place Nucleus in your listening environment. Nucleus is your mothership; you can connect it to your audio devices using a wired or wireless connection. 

Does Roon Nucleus sound better?

In some cases, yes. I’ve discovered that a direct wired or Roon Ready connection to the Nucleus is always sonically superior to connecting to the USB port of a computer remote. It’s a neutral palette for Roon’s advanced audio engine that allows you to shape your system’s sound signature with any of our 1000+ Roon Certified partner devices.

Is Roon Nucleus an endpoint?

No, it’s not an audio device; its job is more important. It’s your Roon Server – the origin of all things Roon, the gatekeeper of in-home listening and on-the-go Roon ARC enjoyment. Nucleus provides the most stable, quickest, easiest, utterly reliable, problem-free, best-sounding, and immediately excellent Roon-designed Roon Server experience. Get one; you’ll see what we mean.

What type of input and output connections do they have?

• Inputs are 2 x USB-A 3.0 for connecting an external storage drive or network attached storage box.
• Outputs include 2 x USB-A 3.0, 2 x HDMI audio-only stereo and multi-channel, networked Roon Ready, Apple Airplay, and Google Chromecast devices. 

Tech specs: 

Roon Nucleus

• Audio inputs: 2 x USB-A 3.0 for connecting an external storage drive, network attached storage (NAS)
• Audio outputs: 2 x USB-A 3.0, 2 x HDMI audio-only stereo and multi-channel, networked Roon Ready, Apple Airplay, and Google Chromecast devices. 
• Zones: up to six simultaneous zones
• Digital signal processing (DSP): complete DSP functionality in the PCM audio domain. Some DSP functions and combinations may be limited by the DSD and MQA formats to ensure format integrity.
• Internal storage: 2.5″ SATA SSD or HDD up to 15mm drive height (drive not included)
• External storage: 2 x USB-A 3.0 for connecting external storage drives, network attached storage (NAS)
• Library capacity: up to 10,000 albums (100,000 tracks)
• Network: gigabit network LAN
• APP: Roon Remote (Windows, Mac, iOS, and Android) and Roon ARC (iOS and Android)
• Control systems: Roon API, Crestron, Control4
• Power supply: DC Power Supply (19V, 60W); Barrel length: 2.5mm ID, 5.5mm OD, 11mm L; Cord length: 4 feet
• Enclosure: heat-dissipating one-piece die-cast aluminum chassis.
• Finish: automotive grade satin off-black
• Dimensions: 10.5in (W) x 10.5in (D) x 2.5in (H)
• Weight: 7lbs (product only)
• Warranty: 2 years

Roon Nucleus Plus:

• Audio inputs: 2 x USB-A 3.0 for connecting an external storage drive, network attached storage.
• Audio outputs: 2 x USB-A 3.0, 2 x HDMI audio-only stereo and multi-channel, networked Roon Ready, Apple Airplay, and Google Chromecast devices. 
• Zones: unlimited simultaneous zones
• Digital signal processing (DSP): complete DSP functionality. Some DSP functions and combinations may be limited by the DSD and MQA formats to ensure format integrity.
• Internal storage: 2.5″ SATA SSD or HDD up to 15mm drive height (drive not included)
• External storage: 2 x USB-A 3.0 for connecting external storage drives, network attached storage (NAS)
• Library capacity: More than 10,000 albums (100,000 tracks)
• Network: Gigabit network LAN
• APP: Roon Remote (Windows, Mac, iOS, and Android) and Roon ARC (iOS and Android)
• Control systems: Roon API, Crestron, Control4
• Power supply: DC Power Supply (19V, 60W); Barrel length: 2.5mm ID, 5.5mm OD, 11mm L; Cord length: 4 feet
• Enclosure: Heat-dissipating one-piece die-cast aluminum chassis.
• Finish: automotive grade satin off-black
• Dimensions: 10.5in (W) x 10.5in (D) x 2.5in (H)
• Weight: 7lbs (product only)
• Warranty: 2 years

What comes in the box?

Roon Nucleus/Nucleus Plus:

• Roon Nucleus Server
• Universal DC Power Supply with US/UK/EU/AU plug adapters
• Quick Start Guide
• One year of Roon promo subscription code
• Four screws for mounting an internal storage drive (drive not included) 

A bold, and better-sounding, new world

The release of Roon 2.0 has revolutionized our connection to the music we love, thanks to the Roon ARC app. Roon ARC hands us the keys to a custom-built streaming service – powered by the very same music library and rich trove of Roon features we enjoy at home. Now that ARC is our mutual music obsession, we’re continuing our exploration of specialized portable DACs perfect for getting the most out of our on-the-go music listening.

Some folks may wonder why even bother with it – it’s just a mobile device. And that’s a reasonable question. Rather than fall back on a reflexive music obsessive’s “because music, dude.” answer, let’s consider why. One reason is that Roon ARC uses the same superior audio engine as your Roon setup at home. Another is that we frequently don’t realize what we’re missing until we hear the difference that a good DAC can make. Returning to mediocre sound afterward presents a real challenge – and potential suffering. We don’t want you to go through all that, which is reason enough.

Fortunately, audio manufacturers have stepped up to make the task more effortless than ever before. They’re locked in a feverish race to churn out value and feature-packed, small-form-factor DACs with impressive sound quality and plummeting prices. It’s a surprisingly competitive market that music lovers benefit from. Roon is here to help you choose with a growing selection of portable converters featuring flagship DAC chipsets and inclusive format support in every price range – and in increasingly undersized packages.

The iFi Audio products in this review are examples of that. The iFi GO blu is so tiny it could be a HiFi system for a fairy house – the GO bar resembles a lighter. They’re small small, but both earned a “though she be but little, she is fierce” rating on our scale of sonic subjectivity. Let’s take a closer look at what they have to offer. 

iFi Audio, specialists in affordable feature-packed on-the-go DACs

The GO blu, GO bar, and xDSD Gryphon aren’t iFi’s first foray into portable or desktop DACs. The retired micro and nano series devices were Roon Tested customer favorites and offered considerable value to feature benefits. Their new lineup retains many of the previous models’ connectivity and file format strengths while adding performance, sound, and circuitry implementation improvements in all-new, incredibly downsized enclosures. 

All three models feature balanced and single-ended headphone outs, impressive amp output power, multiple digital filters, and sound processing modes, plus bespoke device-tailored circuitry implementation to ensure winning performance before their individual character traits are dialed in. 

GO blu (seen above through a magnifying glass) is iFi’s most portable DAC and headphone amplifier. It supports every current Bluetooth codec plus high-resolution streaming up to 24-bit/96 PCM over USB-C. It’s sparse on LEDs and controls to maintain its size, and each button is multi-function. It also features a built-in microphone for calls and voice commands.

GO bar is a remarkably feature-packed DAC that offers uncompromised file support for up to 32- bit/384kHz PCM, DSD256, DXD, and full MQA playback. It packs a whopping 7.5 volts of balanced output power that outpunches every other DAC in this weight class. iEMatch allows the GO bar to push sensitive in-ears without associated hiss or noise. 

The 2022-2023 EISA Best Portable DAC award-winning xDSD Gryphon provides unmatched connectivity with dual USB-C, Bluetooth, mini S/PDIF, and analog inputs with support for up to 32-bit/768kHz PCM; DSD512, DXD768, full MQA decoding and every Bluetooth codec in their familiar flask-shaped design. The OLED screen displays input, format, bitrate, and filter mode. iFi’s full suite of bespoke circuitry integration is tucked inside. Navigation is intuitive, and Gryphon is pleasantly easy to use. Full specs for each iFi model are listed further below.  

The iFi portable DACs paired exceptionally well with my headphone choices, powering them easily. We’ll cover general sound characteristics first and expand below with detailed listening notes. 

The devices have a slightly warm tuning consistent with iFi’s other models, but it isn’t overdone. There’s quick, realistic bass response; full, rich natural mids resulting in good upper mid presence. Imaging and detail are pretty impressive across all models. Staging is natural. Highs are clear and detailed, only bright or grainy on test tracks with those qualities. The Gryphon steps well forward of the other two DACs, but that’s expected given its price and award-winning status. 

Listening Notes

For close listening, I used Roon ARC and Roon to push Hi-Res FLAC and MQA from Qobuz and TIDAL directly to the headphone output of my iPhone, iPad, or Apple Silicon MacBook Air. Immediately afterward, I listened to each selection a second time with an iFi DAC taking the place of the system headphone out.

Then I activated the audio filters to assess their impact on each track and the headphone pairings I used. Headphone choices were the Meze 99 Classics and its new open-back look-alike – the Meze 109 PRO. I also used the Sennheiser Drop 6XX to test their output power.

The reference tracks came from my New Releases For You section in Roon and Community member recommendations from What We Are Listening To [2022-10].

John Coltrane – Blue Train – from Blue Train: The Complete Masters using the iFi GO blu with the Meze 99 Classics.

iPad headphones out:

Those landmark opening horn lines feel mournful! Paul Chambers’ loping bass is rubbery in the right channel. Coltrane’s horn soars in the center upper left, but there’s not a lot of detail to engage with. The piano and cymbals are lost, not much character in the drums. Backing horn parts aren’t very distinct. It almost feels like listening to an MP3. There’s good energy during Lee Morgan’s break, but that’s all coming from him. There’s heaps of nuance missing. 

iFi GO blu:

The legendary three-horn intro has returned to its full glory! Rhythm section synergy is on full display from the first few bars, and the bop lines from the piano cut through the mix better. Trane’s horn is rounded and warm, with sumptuous tonal color and mild grain when he digs into the body – but there’s also excellent air. 

The entire soundstage has improved depth. The backing horn lines are distinct, with more precise imaging now. Morgan’s break absolutely crackles with his signature fire. Curtis Fuller’s trombone lays in with some cool blue riffs. When the horns lay out, Kenny Drew kicks the piano up a gear as Philly Joe and Paul Chambers lock in perfectly. The GO blu presents the trio segment splendidly. This is what several constituents of the Miles Davis Quintet at work are supposed to sound like! The GO blu and the 99 Classics pair well here and do this track justice.

Filters review:

XBass: This filter doesn’t work too well here. The bass is placed pretty far right in the mix, and with the filter activated, the track feels lopsided. 

XSpace: This scoops out the bass a bit too much and also takes away from the piano, creating an unnaturally thin sound. Spatial shaping is just more EQ. 

XBass+XSpace: This added watery depth to the soundstage during Curtis Fuller’s break due to the splashy plate reverb. During the piano trio segment of the track, this filter played really nicely.  

No Filters: Returning to an unprocessed signal demonstrated that while the filter settings were agreeable in places, they’re not necessary on this particular track because the interplay and musicianship outstrip any need for sound fiddling. 

Creedence Clearwater Revival – Green River – from At the Royal Albert Hall using the iFi GO bar with the Drop/Sennheiser 6XXs.

MacBook Air headphones out: 

This is another excellent example of how a carefully chosen DAC improves music listening. The laptop headphones out doesn’t generate enough power to adequately run these headphones. This is something that many of us have encountered: we take tentative steps into quality headphones only to realize they need more than our stock devices can provide to sound their best. And that’s precisely what I experienced when I tried to run these moderately power-hungry Sennheiser 6XXs. 

Consequently, there’s not much going on here other than volume. The track is a live rocker, so it suffers considerably less than some other selections might have. The bass throbs shapelessly, cymbals are lifeless, anemic snare snap, boxy drums, and guitars are scratchy and mildly abrasive. These are relatively warm headphones, but some highs are sharp and brittle.   

iFi GO bar:

Here’s where the GO bar revealed CCR’s true colors. GO bar powered the Sennheiser 6XXs effortlessly. 

Green River exploded to life with driving bass lines that exhibit thunderous heft. The snare leaps to the fore tucking itself between the vocal and just below the bass. Fogerty’s vocal is filled out and soulful. His melismatic lyrics fold themself into Stu Cook and Doug Clifford’s heavy groove like broken-in chambray. Tom Fogerty’s guitar, practically inaudible before, provides extra color with Byrds-like chiming rhythm lines. John’s stinging guitar leads were so gritty and distinctive that they pulled me into an unplanned bonus lap. 

I loaded up the new Travelin’ Band: Creedence Clearwater Revival at the Royal Albert Hall documentary on Netflix to see them crank this one out on archival film. Another benefit was immediately highlighted, portable DACs make everything sound better. They’re not just for music. It’s difficult to fully articulate how much detail was missing when using the laptop’s headphones out when compared to the GO bar. It’s something that has to be heard to fully understand.

Filters review:

XBass: the low bass region is heavier and has a rounder depth. There may be a slight heft for definition trade-off. But still, a decent enough filter when applied to this track.

XSpace: this filter has more of an upper mids/low highs focus, drawing out the airy frequencies. It saps the groove and doesn’t work on this track. 

XBass+XSpace: The added punch in the lows is balanced by the presence boost providing equal helpings of drive and space. This setting really works for this track and headphone pairing. 

No filters: returning to an unprocessed sound wasn’t a big jolt. That’s always a good indicator that the filters were well-implemented and designed. 

Abel Selaocoe – Ibuyile l’Africa / (Africa is Back) from Where is Home (Hae Ke Kae)  using the iFi xDSD Gryphon with the Meze 109 PRO

iPhone headphones out: 

This performance really drove home the point of our portable DAC testing exercises. Ibuyile l’Africa (Africa is Back) is a traditional South African hymn sung during the apartheid era that encourages African youth to shape their future and cherish their traditions. It provides a taste of South African cellist Selaocoe’s distinctive and diverse talents by blending isiZulu vocals with an ethereal cello solo contributed by Yo-Yo Ma. 

It’s also a demonstration of the eclectic range of recommendations you’ll encounter in the Music threads of Roon Community. Even the iPhone’s paltry headphones and its difficulty pushing Meze Audio’s 109 PRO couldn’t entirely strip it of its beauty and emotional depth. Still, it’s overtly apparent that instrumentation and musicianship of this caliber are painfully underserved by the iPhone’s onboard DAC. And in many more ways than just the downsampling of the original 24/96 Hi-Res track. I felt rude listening to the piece in this way.

iFi xDSD Gryphon: 

When heard through the xDSD Gryphon, entire landscapes of previously absent tonal color, gentle dynamics, and acoustic space are revealed. The interplay of instruments and voices is intoxicating and captivating in equal measure. The violins swell among the warmer cello, and beautifully expressive vocal lines rise and fall with the melodic string accompaniment as the piano adds light punctuation and delicately flowing motifs. To enjoy a composition this beautiful with coffee and quality open-back headphones under a giant oak tree in the park on a golden autumn morning is audio-decadence-defined. One I never would have had without Roon ARC, iFi Gryphon, and the Meze 109 PRO’s similarly spellbinding contributions to the experience. 

Filters review:

XBass: Ouch! When activating the XBass filter, I was assailed by an unexpected loud snap. It’s the first time I’ve encountered that when using the filter options on one of these devices. That was quite unpleasant. In this piece, XBass has less of an effect. There’s some marginal added depth when the cello and piano are present, but they’re superfluous and unneeded.

XSpace: Again, not much benefit. The piece already enjoys a lovely recording space and remarkable dynamics.

XBass+XSpace: Another loud pop. The experiment is concluded until I figure out the cause.

No filters: The composition and performance are masterful in their own right. There’s no need at all for any menial improvements. The sudden, painful spikes caused by activating the filter have made me cautious about playing with the settings further.  

Conclusion

iFi’s commitment to making high-quality audio accessible to everyone continues. Their new lineup of versatile High-Res portable DACs is perfect for enjoying the benefits of Roon ARC, Roon, or any other media you consume on your mobile device or laptop. Portable DACs make everything sound better. They’re not just for music. Gaming, movie streaming, podcasts, radio… all your better sound wishes are granted.

All three models are flexible feature and connectivity-rich DACs with bespoke device-tailored feature implementation and impressive output power capable of driving demanding headphones. The iFi xDSD Gryphon is an award-winning portable DAC with support for up 32-bit/768kHz PCM; DSD512, DXD768, full MQA, and Bluetooth codec decoding overachiever with excellent sound and features. GO blu and GO bar were equally impressive by packing pristine audio quality into pixie-sized packaging. I can’t envision more portable on-the-go audio than iFi’s GO blu and GO bar.

They provided an immediate and obvious improvement over the onboard DACs we pitted them against, and they’re some of the most affordable inroads to high-quality audio that can be found. Even better, they were foolproof when integrated with Roon! Paired with our headphones and song selections, they were thoroughly exceptional sonically. iFi Audio makes it easy to enjoy high-quality audio wherever you go. Simply match them with any of the headphone options in The Roon Store to rediscover and reconnect with your favorite music.

Their winning streak in on-the-go value-for-price audio makes it a strong candidate for consideration whether you’re looking to take ARC to the next level or optimize your desktop setup. Any choice you make is guaranteed to reap Roon ARC rewards – and your ears will thank you!

For more details, please see iFi’s partners page.

Additional observations of note:

• If your iOS devices are older models, you’ll want to ensure they’re compatible with iFi’s portable devices. I use an older iPhone (iPhone 7 on iOS 15.6.1) that wouldn’t send audio via USB to the iFi devices if my battery was below a certain charge level. My newer iPad worked without any problems. 
• The text on the GO blu and GO bar is nearly invisible due to its low contrast. GO bars LEDs are on the small side also, making them difficult to read.
• The Gryphon’s analog inputs become line outputs when USB, Bluetooth, or S/PDIF are selected as input. 
• The Gryphon USB-C input has priority over the S/PDIF input. To use the S/PDIF input of the Gryphon, you must disconnect the USB-C input.
• On two occasions, Gryphon emitted a loud pop from the headphone out when activating the audio filters. I couldn’t determine a cause, but the unexpected jolt was unpleasant. Other iFi owners have mentioned similar behavior in online forums. I recommend caution when applying the filters. Hopefully, iFi will investigate and fix the issue. It was the only less-than-stellar impression I had of the Gryphon.

iFi portable DAC FAQs

Are these devices Roon Certified?

• Yes, each of these iFi portable DACs is Roon Tested. Simply plug them into a USB port or compatible adapter, then enable the device (or select the Zone connected to the iFi DAC) in Roon to enjoy better sound quality!

What file formats and resolutions do they support?

• iFi GO blu: up to 24-bit/96kHz PCM via USB. Bluetooth 5.1 codecs: SBC (standard Bluetooth), AAC (Apple iOS), Qualcomm’s aptX, aptX HD, aptX Adaptive, and aptX LL (low latency), Sony’s LDAC, and LHDC/HWA Adaptive, aptX HD, and LDAC
• iFi GO bar: up to 32-bit/384kHz PCM, DSD256 native, and MQA via USB.
• iFi xDSD Gryphon: up to 32-bit/768kHz PCM, DSD512, DXD768, and MQA. Up to 24-bit/192KHz PCM and DoP (S/PDIF) 

What type of input and output connections do they have?

• iFi GO blu: 
• Inputs are USB-C and Bluetooth 5.1. 
• Outputs include 1 x unbalanced 3.5mm, and 1 x balanced 4.4mm headphone outs.

• iFi GO bar: 
• Inputs are 1 x USB-C. 
• Outputs include 1 x unbalanced 3.5mm, and 1 x balanced 4.4mm headphone outs. 

• iFi xDSD Gryphon: 
• Inputs are 2 x USB-C, (one for audio, and one for charging) Bluetooth 5.1, 1 x 3.5mm S/PDIF, 1 x 3.5mm analog, and 1 x 4.4.mm analog. 
• Outputs include 1 x unbalanced 3.5 mm and 1 x balanced 4.4mm headphone outs. 
• The Gryphon’s analog inputs become line outputs when USB, Bluetooth, or S/PDIF are selected as input. 
• The USB-C input has priority over the S/PDIF input. To use the S/PDIF input, you must disconnect the USB-C input.

Tech specs: 

iFi GO blu:

• DAC Chip-set: Cirrus Logic 43131
• Bluetooth Chip-set: Qualcomm QCC5100
• Compatibility: Roon Tested, Bluetooth 5.1
• Audio inputs: 1 x USB-C, Bluetooth 5.1
• Audio outputs: 1 x unbalanced 3.5 and 1 balanced 4.4.mm headphone outputs
• Supported File Formats: up to 24-bit/96 kHz PCM and Bluetooth 5.1 codecs: SBC (standard Bluetooth), AAC (Apple iOS), Qualcomm’s aptX, aptX HD, aptX Adaptive, and aptX LL (low latency), Sony’s LDAC, and LHDC/HWA Adaptive, aptX HD, and LDAC
• Dynamic Range: > 120dB(A)
• Output Impedance: < 1Ω
• THD+N: Balanced: < 0.009% @ (6.5mW/2.0v@600Ω); Single-ended: < 0.03% @ (100mW/1.27v@16Ω)
• Power Output: Balanced: 245mW @ 32Ω, 5.6v @ 600Ω; Single-ended : 165mW @ 32Ω, 2.8v @ 600Ω
• Frequency Response: 20Hz – 45kHz (-3dB)
• Battery Life: 8-10 hours
• Weight: 0 lbs, 0.95 oz.
• Dimensions: 2.1″ (W) x 1.3″ (H) x 0.5″ (D)

iFi GO bar:

• DAC Chip-set: Cirrus Logic 43131
• Compatibility: Roon Tested
• Audio inputs: 1 x USB-C
• Audio outputs: 1 x unbalanced 3.5 and 1 balanced 4.4.mm headphone outputs
• Supported File Formats: up to 32-bit/384kHz PCM, DSD256 native, and MQA via USB.
• Dynamic Range: 109dB(A) Balanced; 108dB(A) Single-ended
• Output Impedance: < 1Ω
• THD+N: Balanced: <0.002% (6.5mW/2.0V @ 600Ω); Single-ended: <0.09% (100mW/1.27V @ 16Ω) 
• Power Output: Balanced: 475mW @ 32Ω; 7.5V @ 600Ω; Single-ended: 300mW @ 32Ω; 3.8V @ 600Ω
• Frequency Response: 20Hz – 45kHz (-3dB)
• Weight: 0 lbs, 0.1 oz.
• Dimensions: 2.6″ (W) x 0.9″ (H) x 0.5″ (D)

iFi xDSD Gryphon:

• DAC Chip-set: Cirrus Logic 43131
• Bluetooth Chip-set: Qualcomm QCC5100
• Compatibility: Roon Tested, Bluetooth 5.1
• Audio inputs: 1 x USB-C, Bluetooth 5.1
• Audio outputs: 1 x unbalanced 3.5 and 1 balanced 4.4.mm headphone outputs
• Supported File Formats: up to 24-bit/96 kHz PCM and Bluetooth 5.1 codecs: SBC (standard Bluetooth), AAC (Apple iOS), Qualcomm’s aptX, aptX HD, aptX Adaptive, and aptX LL (low latency), Sony’s LDAC, and LHDC/HWA Adaptive, aptX HD, and LDAC
• Dynamic Range: > 120dB(A)
• Output Impedance: < 1Ω
• THD+N: Balanced: < 0.009% @ (6.5mW/2.0v@600Ω); Single-ended: < 0.03% @ (100mW/1.27v@16Ω)
• Power Output: Balanced: 245mW @ 32Ω, 5.6v @ 600Ω; Single-ended: 165mW @ 32Ω, 2.8v @ 600Ω
• Frequency Response: 20Hz – 45kHz (-3dB)
• Battery Life: 8-10 hours
• Weight: 0 lbs, 0.95 oz.
• Dimensions: 2.1″ (W) x 1.3″ (H) x 0.5″ (D)

What comes in the box?

iFi GO blu:

• iFi GO blu
• User manual
• Warranty card
• iFi decal
• Soft travel case
• USB-A to USB-C cable

iFi GO bar:

• iFi GO bar
• User manual
• Warranty card
• iFi decal
• Leather travel case
• Lightning to USB-C cable
• USB-C cable
• USB-A to USB-C adapter.

iFi xDSD Gryphon:

• iFi Gryphon
• User manual
• Setup guide
• Warranty card
• iFi decal
• Soft travel case
• Lightning to USB-C cable
• USB-C cable
• USB-A to USB-C cable

The arc of Roon: A continuous line of progression

I’m going to start by giving you a peek behind the curtain. The last few weeks have been absolutely incredible at Roon. The reason is the recent unveiling of Roon 2.0, our most exciting release yet. It’s packed with new features and delivers significant performance improvements on more hardware platforms than ever before. 

Even better, it includes something our customers have requested for a long time – something that forever changes how we use Roon. It’s called Roon ARC – think of it as your own custom-built streaming service powered by your Roon Library at home. It’s now included free of charge with every new and existing Roon subscription. With ARC, staying connected to Roon and the music we love is easier than ever! We’re genuinely humbled by your enthusiasm for ARC and delighted to hear how much you’re enjoying it. 

We’ve been surprised by how many of you have asked about the name, “Why Roon ARC? What does ARC stand for?” Roon ARC isn’t an acronym for anything. Roon ARC just felt right – it named itself after what it wanted to be. 

ARC: a curved structure spanning space that forms a bridge and connects two points.  

And that’s precisely what Roon ARC does. It’s a beautifully designed, intuitive mobile app that creates a bridge to your entire Roon collection of local files and streaming favorites at home – no matter where you are. It includes Roon’s goldmine of music information, Roon Radio, Daily Mixes, New Releases For You, and Roon’s Valence discovery engine – all on your mobile device. 

Just as Roon Bridge creates a bridge between your audio devices, Roon ARC provides a connection across space to your Roon Library. And it utilizes the same audio engine as your Roon setup at home. Now you can explore, rediscover, and expand your music collection with great sound – no matter where you are. 

Wait, great sound on mobile devices? That’s not a thing… is that a thing?! 

We get it. Some of you may wonder if you read that correctly. High-resolution audio wherever you are… on mobile devices? Can you do that? Aren’t mobile devices solidly MP3 territory? We’re excited to say no, they are not, and yes, you can totally do that. As always, Roon is happy to help.

We’ll show you how to get high-quality sound from Roon ARC on your mobile device using the AudioQuest DragonFly – a tiny DAC/headphone amp powerhouse disguised as a magic iridescent USB stick. Best of all, it’s one of the most affordable and enjoyable audio upgrades you can make. 

Flight of the DragonFlys, a flash of sonic color 

Even the most conscientious and committed screen agnostics must admit that they spend a great deal of time with their mobile devices. As a music lover, that means the sound you’re getting from music apps probably isn’t all that it could be. More than that, none of the sound you’re getting is that good. That’s because our device’s DAC falls into the “just good enough” performance bracket, even on laptops. 

But it’s only a mobile device, right? So we deal with it. Our real listening happens on our music systems at home – we say to ourselves. But there doesn’t have to be such a vast disparity in sound quality on mobile if you take flight with a DragonFly.

They’re powered when plugged into the port of your mobile with an adapter and take over decoding from the integrated device DAC. They’ll work with tablets and nearly any Windows or Mac machine. Or you can use them as a pre-amp, plug DragonFly into the USB from a turntable, or your laptop, then connect a pair of powered speakers. Bam, instant hi-fi system.

AudioQuest’s first DragonFly appeared in 2012. Over the last 10 years, the squadron has grown to three wings. The DragonFly Black, DragonFly Red, and flight leader – DragonFly Cobalt. Three impressive DAC/headphone amps that deliver a significant upgrade in sound quality over each other and absolutely smoke the mobile’s onboard DAC. They’re USB sticks dressed in automotive-grade iridescent paint (except for Black) with a 3.5mm headphone out on the other end. Small enough to stick in your pocket or drop into a backpack. They even come with a travel case. So how do they work, you ask?

Each DragonFly model features an ESS Sabre DAC chip, advanced power circuitry, filtering, and signal implementation, producing exceptionally detailed playback of up to 24-bit/96kHz PCM and MQA audio. They have minimal impact on mobile battery life and are firmware upgradeable. The Dragonfly on the sticks lights up to indicate the resolution of the track being played: standby (Red), 44.1kHz (Green), 48kHz (Blue), 88.2kHz (Yellow), 96kHz (Light Blue), and MQA (Purple). Pretty. It reminds me of Chord’s use of color. We’ll discuss audio details a bit more when we talk about their sound using some excellent tracks AudioQuest shared with us. 

Listening Notes

I used Roon ARC to push High-Res FLAC from Qobuz and TIDAL to the DragonFlys using my iOS phone while out and about. Then used them with Roon 2.0 on an Apple Silicon MacBook Air. My headphone pairings were the Meze 99 Classics and its new open-back look-alike – the Meze 109 PRO (review coming soon). I also used the Sennheiser Drop 6XX to test their output power. I queued up the playlist AudioQuest shared with us (see the DragonFly for ARC playlist on your home page in Roon.) and let it throw songs at me. I’d pause and play tracks while swapping out DragonFlys, eager and amazed to hear their differences in real time. 

I started with the headphone output of my iPhone by shuffling the playlist. Then I free-played ARC and Roon for an hour to note the differences between the DragonFly models.

Bobby Hutcherson – Love Song from Montara

Love Song is a percolating electric piano, vibes, horns, and hand percussion track that fuses soulful jazz with 70s R&B and features the heaviest players Blue Note Records had in their roster at the time. The track is off Hutcherson’s simmering soul jazz groove-fest meets Latin rhythm 1975 album, Montara. A bit of a sleeper in the soul jazz lineage. All Blue Note albums seem to project a deeply individual groove, and this one excels at it. Its active arrangement and mix of instrumentation fit our needs perfectly.

iOS out:

With the headphone out of the iPhone, all I got was more volume. There wasn’t any degree of detail, which really robbed the track of life. It felt suffocated and flat. Still an interesting piece but obviously underserved with the OS DAC. There was clearly a lot missing.

DragonFly Black: 

Immediately there’s a night and day difference in sound quality. It doesn’t even feel like the same song. It’s wholly alive and awash with detail. The vibes and Fender Rhodes piano resonate over each other as Afro-Cuban percussion and hand drums add depth and texture. When the horns come in, their timbre and tonal differences are vivid, finding space to breathe. The increased output power rendered greater imaging and clarity from the Meze 109 PRO.

DragonFly Red: 

Just as the Black surpassed the iOS output, Red is a giant step up from the Black. The detail is much sharper but not bright or grainy. The bass extension is nice and full. The horns are incredible. There’s more space to the soundstage and depth to the recording. Everything sounds more filled out; the AudioQuest headphone amp in the Red delivers nicely. There was wonderful synergy on this track when paired with the Meze 109 PRO and enough wow factor to impress jaded gear heads.

DragonFly Cobalt:

This was another startling jump in sound quality. I only expected a subtle improvement, but there were remarkable differences between Red and Cobalt. The pulsing ringing current from the vibes and sparkle of the piano are soulfully articulate, the musical interplay feels more fluid with the improved resolution, and the bass has a richer depth. Horns have lovely detail and presence. All the percussion exhibits finer granular character. There’s beautiful organic density to the music, increased dynamic response, and excellent output power. The soundstage is wide but natural. Imaging is a bit more speaker-like. It’s genuinely impressive – enough so to make the listener study the specs. And I’m a sound guy, not a specs guy.

The ESS ES9038Q2M DAC chip is here. That’s the same DAC chip I’ve seen in the best-sounding DACs I’ve reviewed. But we know there’s more to a DAC than just its chip. Looking further… there’s also an AudioQuest headphone amp, improved microprocessor, mono-clock with jitter control, improved power circuitry, noise filtering, and an integrated minimum-phase slow roll-off filter. All of that results in impressively natural and thoroughly enjoyable sound. It’s truly awe-inspiring performance, especially considering the Cobalt provides sound quality of this level from a USB stick that slips into your pocket.  

The sound character observations above held when free listening on ARC and Roon Remote across the tracks on the AudioQuest Playlist and my Roon library favorites. 

Conclusion: Climb aboard the DragonFly.

Each move up the DragonFly color scheme resulted in an immediately detectable jump in fidelity. With the DragonFly Cobalt ultimately glowing the brightest. As it should be, it’s their flagship DAC. I can’t emphasize enough how surprised I was by what I heard. If you’re seeking a no-compromise experience that’s on par with your at-home Roon listening, Cobalt provides astounding performance in an unbelievably small package. 

But Cobalt’s excellence in no way suggests that the others aren’t star players. The entry-level Black is a vast improvement over the iOS and Mac system output. It perfectly demonstrates what adding the correct external DAC can do. Compared to Black, DragonFly Red is aflame with detail and dynamics, providing an instantly perceived leap in sound quality that had already been greatly improved. They easily drove the Meze 99 Classics, Meze 109 PRO, and even the 300Ω Sennheiser 6XX.  

They’re versatile and can be used for a range of scenarios beyond music listening. Here’s a testimonial from Noris, our Tech-Support team lead:

AudioQuest’s DragonFly DAC and headphone amps are perfect companions to Roon ARC or any listening that could benefit from improved sound quality. They remove all roadblocks to high-resolution audio on the go and on your desktop – and the entry price is unbeatable, no matter which one you choose. Grab a DragonFly, your favorite headphones, and your mobile for travel-friendly, superior sound quality wherever Roon ARC takes you. 

For more details, please see AudioQuest’s partners page.

Additional observations of note:

• For mobile device connection, use an Apple camera adapter for iOS. The AudioQuest Dragon-Tail USB-C adapter can be used for Android.
• Each DragonFly was rock solid with Roon ARC and Roon Remote. When using them, I didn’t have a single sync, volume, or responsiveness issue. 
• There’s an entire DragonFly flight detachment at the ready across Roon. It’s one of the most used DACs among Roon staff. 
• Updating the firmware of the DragonFly is as easy as downloading the AudioQuest device manager and accepting the update. 

AudioQuest DragonFly FAQs

Are these devices Roon Certified?

• Yes, all three AudioQuest DragonFly models are Roon Tested. Simply plug them into a USB port or compatible adapter, then enable the DragonFly (or select the Zone connected to the DragonFly) in Roon to enjoy better sound!

What file formats and resolutions do they support?

• AudioQuest DragonFlys support up to 24-bit/96KHz PCM and MQA rendering.

What type of input and output connections do they have?

• All AudioQuest DragonFly models feature a single USB-A input
• All AudioQuest DragonFly models feature a single 3.5mm headphone output

Tech specs: 

DragonFly Black:

• DAC Chip-set: ESS ES9010 DAC chip with integrated minimum-phase fast roll-off filter
• Compatibility: Roon Tested, MQA renderer
• Audio inputs: 1 x USB-A
• Audio outputs: 1 x 3.5 mm headphone output
• Supported File Formats: up to 24-bit/96 kHz PCM and MQA
• Headphone Amp: Texas Instruments TPA6130
• Output power: 1.2V
• Dimensions: 0.74″ (W) x 0.47″ (H) x 2.44″ (L)
• Weight: 0lb 3.5oz

DragonFly Red:

• DAC Chip-set: ESS ES9016 DAC chip with integrated minimum-phase fast roll-off filter
• Compatibility: Roon Tested, MQA renderer
• Audio inputs: 1 x USB-A
• Audio outputs: 1 x 3.5 mm headphone output
• Supported File Formats: up to 24-bit/96 kHz PCM and MQA
• Headphone Amp: ESS Sabre 9601
• Output power: 2.1V
• Dimensions: 0.74″ (W) x 0.47″ (H) x 2.44″ (L)
• Weight: 0lb 3.5oz

DragonFly Cobalt:

• DAC Chip-set: ESS ES9038Q2M DAC chip with an integrated minimum-phase slow roll-off filter for more natural sound.
• Compatibility: Roon Tested, MQA renderer
• Audio inputs: 1 x USB-A
• Audio outputs: 1 x 3.5 mm headphone output
• Supported File Formats: up to 24-bit/96 kHz PCM and MQA
• Headphone Amp: ESS Sabre 9601
• Output power: 2.1V
• Output Impedance: 10k ohms
• Dimensions: 0.74″ (W) x 0.47″ (H) x 2.44″ (L)
• Weight: 0lb 4.2oz

What comes in the box?

DragonFly Black/DragonFly Red:

• DragonFly Black or DragonFly Red
• DragonFly Flight (owners) Manual
• 60-Day Roon subscription code (included with DragonFly Red only) 
• DragonFly travel pouch. 

DragonFly Cobalt:

• DragonFly Cobalt
• 6″ AudioQuest Dragon-Tail (USB-C male to USB-A female adapter)
• DragonFly Flight (owners) Manual
• 60-Day Roon subscription code
• DragonFly travel pouch. 

The parade of DACs, and a word of thanks!

Before launching into our review of the Mytek Liberty DAC II and Liberty THX AAA Headphone Amp, we want to thank you for your support and kind feedback. It’s what Roon is here for, to make these choices easier for you. We’re excited to hear that these articles are helpful and welcome your questions.

A few of you have asked us why there are so many DAC models and what makes them different. We completely understand your curiosity. You’ve seen reviews on DACs, including ours, that mention the chips used in a device, and the same chips keep popping up repeatedly. If that’s the case, how can all these DACs sound different?

It’s important to remember that there’s more to a DAC than just the chip that converts the digital signal to an analog one our ears can understand. Implementing the chip into the surrounding circuitry, the power supply, the analog output section, and other factors make a big difference.

Think of it this way; many guitarists have played Fender Stratocasters, but they didn’t all sound the same. There was only one Jimi Hendrix. If the guitar were the determining factor, they would have all been Hendrixes, stylistically. How the chip (guitar) is plugged into the circuitry (an individual player) makes it unique.

The origins of DACs, and their shared DNA with Mytek

A curious paradox about DACs is that they shouldn’t sound like anything. A DAC should be a ghost, present yet transparent. Stopping to consider the original purpose of convertors explains why. They began as ADACs – analog to digital to analog converters in mastering and recording studios. Their goal was to encode analog material to a digital signal and reproduce the analog original as accurately as possible. To achieve that conversion without introducing unintentional coloration was sonic Olympia. But it’s exceptionally challenging to do. There are innumerable ways to alter the sound unintentionally. Noise, harmonic distortion, inconsistent current, poor power… more than we could list. 

Fully grasping the importance of passing a musical signal through that conversion loop unadulterated is inherent in people with experience in the spaces where music is made. That understanding is at the foundation of every Mytek product. 

Mytek was born in the studio. And it’s a significant factor why their DACs and Amps are highly esteemed for their accuracy and musical purity. Mytek founder, Michal Jurewicz, worked in some of New York City’s most prolific studios just as recording technology transitioned from analog to digital. He knew what a well-recorded analog track sounded like. His understanding of audio circuitry, technical acumen, and passion for sonic transparency inspired him to improve the sound quality of the first digital recording systems utilized at Skyline Studio. Artists and producers praised the accuracy and sound quality of Mytek equipment, and soon Mytek gear was found in most of the top-tier recording studios in Manhattan.  

That spirit of innovation continued with Mytek’s desire to make the same musical playback equipment available to music lovers, which led to several award-winning home audio DACs that exude the same sound quality as their studio-based siblings. We’ll listen to, and share our thoughts on, the Liberty DAC II and Liberty THX AAA Headphone Amp – two stunning desktop units that place great sound and captivating close listening within a headphone cable’s reach. 

Mytek’s Liberty series, quality transparency wunderkinds

The Liberty product line was envisioned as a series of affordable, high-quality single-purpose boxes. Each is designed to perform one dedicated function exceptionally well. The Liberty DAC II had to have missed its “you have one job!” email – because it does three quite remarkably. There’s always a show-off…

The Liberty DAC II is a DAC, Pre-Amp, and Headphone Amp all in one – and it is phenomenally adept at each task. Readers familiar with the original Liberty DAC will recognize external similarities in the Liberty DAC II. The machine-stamped enclosure with Mytek logo venting is nearly the same size and design. The subtlety scaled face plate, LEDs, and rear-mounted connections orientation differ only slightly, and inputs remain plentiful. The Liberty DAC II has a remote for added convenience; the original had none. The most significant changes are tucked away inside the enclosure, unseen – but immediately heard and felt. What are they? Off we go… 

A substantial improvement comes via the new overspeced linear power supply and accompanying toroidal transformer. The analog outputs and headphone section have also received enhanced linear power circuitry. The converter chip-set was upgraded to an ES9038Q2M, the junior version of the ES9038PRO used in Mytek’s flagship product lines. These aren’t the only changes that were made, but the presence of all three is rare in a DAC of this price and size! Remember earlier when we mentioned the importance of the power and analog output stages? They’re proven in this Mytek’s pudding. 

Those power sections push up to 3 watts from the headphone jack and easily drive most high-impedance headphones. The Meze Liric and Meze Empyrean headphones paired with it very well. And it’ll decode up to 32-bit/384kHz PCM, DSD256, and MQA – that covers the waterfront, and then some format-wise, with Roon streaming partners.

Wiring it up to the legacy system we’ve used the last few weeks provided stellar results. Then we connected the Liberty DAC II to a Primare Prisma MK2 Roon Ready bridge and instantly had a Roon Ready wireless legacy system. But this box sounds incredibly good no matter how you integrate it into your system – we’ll dig into the sound more deeply in our listening notes.

If you’re new to Liberty DAC II, you appreciate its finer features as much as its sound. The feeling of the 1/2dB stepped volume pot, the snap of the headphone jack when the plug seats, and how perfectly cabling locks into the rear connections. Its tactile feel is beyond satisfying.

Personally, its look and feel were pleasantly reminiscent of the studio gear of my past. It’s the first time I can say that a consumer audio desktop unit felt like studio hardware since I last had production gear on my desk daily.

The Liberty THX AAA HPA, audio purity – not morse code

The Liberty THX AAA HPA is another impressive sonic wonder in the Liberty product line. Let’s start by decoding its name. AAA is an acronym for the Achromatic Audio Amplifier technology developed by George Lucas’ THX production company. HPA stands for Headphone Amp. 

The Liberty HPA utilizes THX AAA 888 circuitry, the most linear amplifier technology available today. Its goal is hidden in the name, achromatic means “without color.” AAA technology was developed to deliver completely transparent musical accuracy with unprecedented dynamic range while maintaining extraordinarily low levels of noise and distortion – even at -1dB from the maximum output level.

The Liberty THX AAA™ HPA is a reference-grade desktop headphone device nearly identical to the Liberty DAC and equally suited for dedicated HeadFi enthusiasts or professional sound engineers. The Liberty HPA features controls for input, gain levels, and crossfeed mode on its face and four sets of analog inputs on the back. (Full tech specs for both devices can be found below)  

The Liberty HPA reinforces Mytek’s technical expertise and commitment to developing equipment capable of pristine music reproduction. Its genetics continue the legacy of the legendary Mytek Private Q headphone monitoring systems used in almost every New York City recording studio in the 1990s. Headphone cue systems are critical in music studios. Creativity instantly craters when artists and engineers can’t trust the accuracy of their headphone feeds.

The technology inside the Liberty HPA cranks out up to 6 watts of rich analog sound to four headphone outs; balanced XLR 4pin and 4.4mm, and unbalanced 1/4” and 3.5mm. That’s enough muscle to drive any pair of headphones available today with reference-grade audio transparency. Whether you’re using the Liberty HPA for studio monitoring or music immersion, you can trust that you’re hearing exactly what’s in the mix or Final Master. 

And, for those who use another DAC for reference decoding, there’s good news. The Liberty HPA can be paired with any DAC or device with analog outs. Connect it to your current DAC and feel confident that you’re hearing it at its best. The Liberty HPA dishes out power and accuracy anywhere you tie it into your signal chain.

Mytek’s Liberty DAC II and Liberty THX AAA HPA demonstrate the sonic benefits of the company’s studio heritage, delivering decoding precision and sound reproduction with astonishing musical accuracy. The only way to get closer to the original recording would be to hear it in the studio, where it was tracked and mixed.

Listening Notes

I auditioned the Liberty DAC II and Liberty THX AAA HPA in various configurations. First, using the DAC and its integrated headphone amp out, then the Liberty DAC II paired with the Primare NP5 Prisma MK2 Roon Ready bridge for wireless networked streaming. Then with both of them wired to the THX AAA Headphone amp. I left the Liberty HPA gain settings on normal with crossfeed deactivated. I used the Meze Liric and Meze Empyrean for reference.

I found the sound of these devices to be absolutely stellar in their transparency and musical nature. I don’t mean a bright “audiophile” sound signature when I say transparent. That kind of presentation isn’t generally accurate because it’s been tuned to enhance higher frequencies. Both Liberty devices presented my reference albums with an exceptionally natural, lifelike sound signature. What you hear is more of the genuine character of the original recording. I wondered if that may be undesirable with genres and records with lesser production quality. I decided to test that possibility with one of Rock music’s undisputed classics.  

Rolling Stones – Exile on Main Street

This is an album I know like sugar knows ice cream. I’ve played it thousands of times on more systems than I can remember. It was recorded by The Stones while they were in the throes of legal and tax problems in England. Recording began in London before they decamped to an improvised dank basement studio in the South of France. It’s a legendary rock record, but it typically sounds murky when played by inferior devices because of its thick, humid mix. 

I demoed a few tracks from this album on the Chord Hugo 2 – 2go combo a month ago and was surprised by how wide the soundstage sounded – I’d never heard it open up so much. With the Liberty DAC II receiving wireless 24/192 kHz FLAC from the Primare streaming from Qobuz, the album crackled with wiry energy, displaying hypnotic rhythmic currents. The staging was narrower than it was with the Hugo, but it felt more natural. The sound was unbelievably analog in character. Like I was listening to a stereo mixdown on reel-to-reel tape at Sunset Sound circa the early summer of 1972.

The bass was full and had great punch. The depth of the kick drum cut through with lovely heft. The stacked guitars and organ felt less claustrophobic in the mids, and the horns, piano, and harmonica had wonderfully organic timbre and texture. The album sank wonderfully into my marrow when played through Meze Liric headphones. It was a transcendent listening session, one of those brief periods when you’re entirely engrossed in the music. It’s inspiring when music you’ve lived in feels this fresh again.

Sleep – Dopesmoker

This album just returned to streaming, thanks to renewed licensing from Third Man Records. The original album title has been restored. Dopesmoker evolved into Jerusalem upon release under the influence of eastern mysticism and cannabinoids. When I bought a copy on disc in 1999, it had a sticker on the front that read, “Threatens to eclipse the first four Sabbath albums in a wall of pot smoke and despair.” How could you not buy that?! 

For this one, I added the Mytek THX AAA HPA to the Liberty DAC II and Primare NP5 Prisma MK2, then seated the Meze Empyrean on my head. Now, admittedly, a stoner rock cult album may seem like a strange choice of demo music. But it contains one of the most unique untameable, and idiosyncratic organic signals you can throw at a converter – distortion-soaked layered guitar riffs.

For anyone schooled in fuzzology, Dopesmoker’s hour-long primordial riff swamp is ideal fuel for DAC study. The track’s chugging intro builds slowly in volume and instrumental intensity before an avalanche of Sovtek fuzz-fueled Orange Amplification crashes down upon the listener at 2:47 seconds in. It’s incredibly heavy, but its undulating oceans of woolly fuzz sounds remarkably musical. If ever there was an album that would suffer from enhanced analytical decoding, it would be this one. Instead, the waves of sonic magma are astoundingly controlled and detailed – oozing from the Liberty boxes with every watt of their pulverizing intensity perfectly delivered for maximum crushing impact.

It’s the first time I’ve played it in its entirety in a while, and I quickly realized just how poorly it’s been treated by Bluetooth streaming and the DACs on my laptop or phone. Follow the smoke to the riff-filled land? Can do, dude!

Conclusion, I have discovered my new go-to reference playback gear 

Mytek’s studio origins shine through in all their products; they exude a confident understanding of digital encoding, reference-grade playback purity, and studio-grade reliability. It’s a significant factor why their DACs and Amps are so highly esteemed. These products are perfection, unerringly reliable in Roon, and built to sustain years of heavy use – and, they make the same equipment used to create timeless music available to music lovers. 

The Liberty DAC II and Liberty THX AAA Headphone Amp have become my new reference DAC and HeadAmp. Their transparency and accuracy resonate with my studio and production background like no other prosumer DAC/Headphone Amp combination I’ve used previously has. They deliver phenomenally pristine sound and allow me to hear my favorite music exactly as the artist intended. 

If you’re looking for a DAC/AMP or Headphone Amp that shares DNA with studio-grade gear – your search is over. That legacy is at the heart of everything Mytek does. My Liberty DAC II order has been placed. 

For more details, please see Mytek’s partners page.

Additional observations of note:

• Mytek Liberty Series devices have a combination input/power button. Press and hold the button for a few seconds to power up the units.  
• The Liberty DAC II’s remote is fully integrated with Roon. Adjust volume, pause and resume play, or change tracks with the remote, and Roon responds just as if you were in the app. 
• The Liberty DAC II remembers your last volume setting when powered back up. 
• Exercise Caution: fixed output on the Liberty DAC II is achieved by turning the volume up to full. That would be an unpleasant surprise if one were to return to headphone listening after using fixed output. We’ll update these notes if an alternative fixed output mode is revealed. 
• Connecting the Mytek THX AAA to the Liberty DAC II, I used inexpensive RCA, and XLR interconnects and found the sound quality exceptionally good. 
• My preferred settings for the Mytek THX AAA HPA were with normal gain and without crossfeed activated.
• The Liberty THX AAA HPA can drive the most demanding headphones with complete ease, purchase with confidence.

Mytek Liberty DAC II and Liberty THX AAA Headphone AMP FAQs

Are these devices Roon Certified?

• Yes, the Liberty DAC II is Roon Tested and requires a wired USB connection. For wireless Roon RAAT streaming, simply connect the Liberty DAC II to a Roon Ready bridge. I used the Primare NP5 Prisma MK2 in my tests with excellent results. 
• Roon Certification doesn’t apply to the Liberty THX AAA HPA. It’s a standalone headphone amp that can be connected to a DAC, Pre-amp, or any similar device with analog outs.   

What file formats and resolutions do these devices support?

• Mytek Liberty DAC II up to 32-bit/384kHz PCM, DSD256 native, MQA™, DXD (USB); up to 24-bit/192KHz PCM, DSD64 DoP and MQA (EBU, S/PDIF, Toslink)
• Mytek Liberty THX AAA HPA is a reference-grade headphone amp. It can handle any signal you send to it. 

What type of input and output connections do they have?

• Mytek Liberty DAC II: 
• Inputs are 2 x SPDIF, 1 x optical, 1 x AES/EBU, and 1 x USB-B (USB2 Class2 driver-less)
• Outputs include 1 x 6.35 mm headphone output, 1 x unbalanced RCA, and 1 x balanced XLR
• Mytek Liberty THX AAA HPA: 
• Inputs are 3 x RCA, 1 x balanced combination XLR / 1/4” TRS
• Outputs include 1 x balanced XLR 4pin, 1 x balanced 4.4mm, 1 x unbalanced 6.35mm, 1 x unbalanced 3.5mm headphone outs, and 1 x Pre-amp RCA

Tech specs: 

Mytek Liberty DAC II:

• Compatibility: Roon Tested, MQA decoder/renderer
• DAC Chip Set: ESS SABRE ES9038Q2M DAC chip
• Inputs are 2 x SPDIF, 1 x optical, 1 x AES/EBU, and 1 x USB-B (USB2 Class2 driver-less)
• Outputs include 1 x 6.35 mm headphone output, 1 x unbalanced RCA, and 1 x balanced XLR
• Dynamic Range: 127dB DR
• Sample File Formats: up to 32-bit/384kHz PCM, DSD256 native, MQA™, DXD (USB); up to 24-bit/192KHz PCM, DSD64 DoP and MQA (EBU, S/PDIF, Toslink)
• Headphone Output Power: 300mA, 3 Watts, designed for hard-to-drive headphones, 
• Headphone output impedance: 0.1 Ohm
• Power Supply: Linear with automatic voltage switching 
• Dimensions: 1/3rd Rack Mounting – 5.5″ (W) x 1.740″ (H) x 8.8″ (D)
• Weight: 4lbs.

Mytek Liberty THX AAA HPA:

• Amplifier Technology: THX AAA certified
• Inputs are 3 x RCA, 1 x balanced combination XLR / 1/4” TRS
• Outputs include 1 x balanced XLR 4pin, 1 x balanced 4.4mm, 1 x unbalanced 6.35mm, 1 x unbalanced 3.5mm headphone outs, and 1 x Pre-amp RCA
• Dynamic Range: 147dB (A-weighted)
• Volume Control: Premium 27mm analog ALPS attenuator
• Total Harmonic Distortion: -150dB min
• Headphone output power: 6 watts
• Power Supply: Built-in oversized 60W linear toroid with automatic voltage switching
• Dimensions: 1/3rd Rack Sizing – 5.5″ (W) x 1.740″ (H) x 8.8″ (D)
• Weight: 4lbs.

What comes in the box?

Mytek Liberty DAC II:

• Mytek Liberty DAC II
• USB 2.0 Cable
• Aluminum Apple remote
• Power cord
• Owner’s manual

Mytek Liberty THX AAA HPA:

• Mytek Liberty THX AAA HPA
• AC power supply
• Owner’s manual