Elite Audio Conversion with Four Unison Mic Preamps, HEXA Core Processing, and Surround Sound.
Apollo x8 allows music producers, project, and post-production studios to track, overdub, and mix with elite-class A/D and D/A conversion, HEXA Core UAD plug-in processing, Dual-Crystal clocking, and 7.1 surround sound monitoring — all in a sleek rackmount Thunderbolt 3 audio interface for Mac or Windows.
Built upon UA’s 60-year heritage of audio craftsmanship, this 18 x 24 interface distinguishes itself with four Unison™-enabled mic preamps, all-new HEXA Core processing — yielding 50% more DSP for running UAD Powered Plug-Ins in real time — plus it includes LUNA Recording System, giving you a fully-integrated music production application.
Record with elite-class A/D and D/A conversion — nearing the widest dynamic range and lowest noise available, at any price
Mix with powerful HEXA Core processing, featuring 6 UAD DSP chips for running more UAD Powered Plug-Ins in real time
Track with near-zero latency through Unison™ preamp emulations from Neve,® API, ® Manley, ® Helios, ® Fender,® and more†
Includes LUNA Recording System — a fully-integrated and inspiring music production application
Elite-Class A/D and D/A Conversion
With thousands of chart-topping songs and hundreds of Grammy-winning albums under their belt, Apollo interfaces are no strangers to tracking stellar-sounding records. To improve on the previous generation Apollo interface’s class-leading audio conversion, UA engineers obsessively auditioned the latest A/D and D/A converters — ultimately pairing elite-class 24-bit/192 kHz converters with all-new analog circuitry for an ultra-pristine signal path.
The Apollo X series also introduces new Dual-Crystal clocking — featuring dedicated crystals for 44.1/88.2/176.4k and 48/96/192k sample rates — resulting in stunningly low jitter, measured at less than 10 picoseconds. This translates into pure, artifact-free recordings and solid stereo imaging you can trust.
With 129 dB dynamic range and -119 dB THD+N, Apollo x8’s open, natural sound quality rivals any dedicated high-end converter on the market — regardless of price — and is the perfect starting point for applying UAD processing.
Realtime UAD HEXA Core Processing
Apollo x8 features new HEXA Core processing, with six DSP chips and 50% more UAD plug-in processing power than previous Apollos. This lets you run more UAD plug-ins, whether you’re tracking in real time with channel strips from Neve, Manley, or API, or running high UAD plug-in counts when mixing in your DAW.
From the tube warmth of Pultec EQs on guitars to the musical tube limiting of the LA-2A on vocals, or the pump of a genuine 1176 or Fairchild 670 tube compressor on drums, your recordings will take a giant leap forward with a rich, three-dimensional analog sound that UAD plug‑ins provide.
Unison Technology: The Genuine Sound of Neve, API & Manley Preamps
Perfect for musicians, engineers, producers, and sound designers, Apollo x8 features four Unison-enabled mic preamps, letting you track through exacting mic preamp emulations from Neve, API, Manley, Helios, SSL, and Universal Audio. A Universal Audio exclusive, Unison technology nails the tone of these sought-after tube and solid state mic pres — including their input impedance, gain stage “sweet spots,” and the component-level circuit behaviors of the original hardware.
The secret to Unison is its hardware-software integration between Apollo’s mic preamps and its onboard HEXA Core DSP Acceleration. Simply place a Unison preamp plug-in on your mic input in Apollo Console software, and it physically reconfigures the Apollo interface's impedance — so you can tap into the classic sounds of the world’s most recorded mic preamps.
Watch the Unison Shoot Out
What happens when you put Apollo’s Unison preamp models up against their vintage analog counterparts? Producer Jacquire King (Tom Waits, Kings of Leon) finds out at the legendary Blackbird Studios in Nashville.
A Full Suite of Classic
Analog Processing Onboard
Of course, a hallmark feature of Apollo is its Realtime UAD Processing, letting you run the full library of UAD plug-ins with near-zero latency. Apollo x8 includes the Realtime Analog Classics Plus plug-in bundle, so you can record and mix with the world’s only authentic Teletronix LA-2A, 1176LN, and Fairchild compressors, the Unison-enabled UA 610-B Tube Preamp & EQ, and iconic guitar and bass amps from Marshall and Ampeg.
See Included Plug-Ins | Watch the live tracking video
Access the World of UAD Powered Plug-Ins
Going beyond the included Realtime Analog Classics Plus plug-ins, Apollo x8 lets you tap into the full UAD Powered Plug-In library of legendary vintage EQs, compressors, reverbs, tape machines, channel strips, and more — at near-zero latency, regardless of your audio software’s buffer size and without taxing your computer’s CPU.
With exclusive emulations from SSL, Neve, Studer, Manley, Helios, API, Ampex, Lexicon, Fender, and more,† it’s like having a studio full of iconic analog gear, in a single rack space. And unlike competing interfaces, these award-winning DSP-powered plug-ins are also available in your DAW for mixing.
†Apollo x8 includes the “Realtime Analog Classics Plus” UAD plug-in bundle. Other UAD plug-ins sold separately at www.uaudio.com.
Surround Sound, Talkback, and More
The Apollo x8 features built-in front-panel monitoring functions including a Talkback mic, Alt Speakers, and assignable Dim or Mono control. Plus, with its comprehensive 7.1 surround monitoring support, Apollo x8 is a boon for engineers and producers working on audio and music for video games, television, and the web. In addition, Apollo x8 offers selectable +24 dBu operation for out-of-the-box compatibility with professional mixing consoles and other high-end pro audio equipment.
Create with a Fast, Natural Workflow in LUNA
Explore analog sound and workflows with LUNA, UA’s Mac‑based recording application for producers and musicians, composers, sound designers, and more.
Designed for seamless integration with Apollo audio interfaces, LUNA gives your recordings big studio sound with built‑in extensions from Neve,® Studer,® and API® — plus inspiring instruments like Moog® Minimoog and Ravel grand piano.
Explore LUNA ›
Build an Expanded Studio System Over Thunderbolt
Apollo x8 offers 18 x 24 simultaneous inputs/outputs (8 x 8 analog I/O) and two built-in Thunderbolt 3 ports. This allows users of any Thunderbolt-equipped Apollo Twin or Apollo rackmount audio interfaces to easily combine up to four Apollos and six total UAD-2 devices — adding fast, high-bandwidth I/O and DSP as your studio grows.
Available as Apollo Heritage Edition
Featuring 10 premium UAD titles — including complete plug‑in Collections of our award-winning Teletronix,® UA 1176, and Fairchild® compressors, Helios® Type 69 and UA 610 mic preamps, Pultec® EQs, and more.
Learn More ›
Apollo X Tech Talk
Universal Audio’s Senior Product Manager, Gannon Kashiwa dives deep into the key features, specs, and development behind the latest generation of Apollo audio interfaces.
“I'm really impressed with the Apollo X8. I hear more detail in the several sets of monitors I use, and I'm getting that little bit extra out of the Unison mic pre emulations – and they were already extremely close.”
– Jacquire King (James Bay, Kings of Leon, Tom Waits)
“I love my new Apollo x8p! I can mix without worrying about the amount of plug-ins I use, and the new converters reveal the most subtle details when I record. One of the best upgrades that I’ve added in a long time.”
– Derek ‘MixedByAli’ Ali (Kendrick Lamar, SZA, Childish Gambino)
“This is the best-sounding Universal Audio D/A ever. By far. It has an extra octave of clear bottom, but it's not hyped. It's just very solid and full. It's like there’s no converter generated signature at all. It’s completely open and natural.”
– Fab Dupont (David Crosby, Shakira, Santigold)
“My Apollos are my sound.
Where I go, they go.”
– Trevor Lawrence Jr. (Dr. Dre, Herbie Hancock, Eminem)
“Apollo is a platform that grows more powerful with every innovation – the UAD plug-in processing onboard has changed the way I work forever.”
– Tony Platt (AC/DC, Bob Marley, Buddy Guy)
“The Apollo is the best I/O we've ever used, and we've tried them all. It has an incredibly clean, transparent, and accurate sound.”
– The Glitch Mob
“I’m totally blown away by the stunning sound quality of the Apollo. The ability to use UAD plug-ins in real-time is pure genius. It’s the centerpiece of my new studio.”
– Richard Devine
“The Apollo's ability to do low latency – I mean that's the whole ballgame right there.”
– Joey Waronker (Atoms for Peace, Beck, Other Lives)
“The Apollo is a powerhouse and a game changer for my studio.”
“Using my Apollos and Console 2.0, I'm able to front a live mix, create a monitor mix, and record, all at the same time. That’s pretty awesome.”
– Chris Dugan (Green Day, Iggy Pop, U2)
“Having the Apollo with UAD plug-ins at my disposal is like carrying a giant studio with outboard racks at all times. Minus the tech fees, down time, and electricity bill!”
– Andrew Dawson (Kanye West, Jay-Z, Fun.)
“Apollo's A/D and D/A conversion sounds incredibly detailed, with great clarity and a tight, punchy low end. And with the Console 2.0 app, I have all of the routing and monitoring options I need.”
– Dave Pensado (Justin Timberlake, Beyoncé, Maroon 5)
“With the Apollo 8 in the studio and an Apollo Twin on the go, I know I've got the best sound quality and an incredible arsenal of plug-ins — wherever I'm working.”
– Jeremy Ruzumna (Fitz And The Tantrums)
“The Apollo x8p is the workhorse for the majority of our mobile sessions. The flexibility is crucial to our workflow and once you’re familiar with the front panel controls and Console software, it becomes a seamless experience that allows you to truly craft your sound.”
– Mike Larson (Pharrell, Ariana Grande, Migos)
Apollo: The Choice of New-School Professionals
Apollo is the confirmed choice of hit-making professionals, used to record landmark albums by Kendrick Lamar (DAMN.), Chris Stapleton (From A Room: Volume 1), Arcade Fire (Everything Now), Post Malone (Beerbongs & Bentleys), and many more. The Apollo range of interfaces has earned numerous industry awards from Sound on Sound, Future Music, and Electronic Musician — as well as the prestigious TEC Award for computer audio hardware five years running.
Apollo Artist Sessions
Watch producer/engineer Fab Dupont (Jennifer Lopez, David Crosby) record Latin superstars Monsieur Periné live in Colombia with Apollo X audio interfaces.
View All Apollo Artist Sessions
May 13, 2022
I’ve had, and still have an Apollo twin MKII since 2018 and it did me justice. I didn’t really think the new converters would be THAT much of a difference, but they really do! Super...Read More
April 24, 2022
Sounds great and plays well with my other Apollos! A TB cable would be nice for the price.Read More
April 20, 2022
Very good audio interface but sonically not at the top
A universally good and professional audio interface when it comes to having everything in one box. The Apollo x8 is professional through and through. In direct comparison to a Lynx Aurora...Read More
March 13, 2022
Superb for tracking.
In 2022 we'd expect AD/DA conversion and playback to be of high quality and preamps to be detailed and sound good. The Apollo x8 does not disappoint. Where the unit becomes incredible is...Read More
March 11, 2022
I had incredibly high expectations when I bought the Apollo X8. It has exceeded every expcatiation that I had. Amazing Interface!...Read More
March 7, 2022
Exactly what was expected
I had a lot of others audio interfaces but this one is the most precise and clear in the all spectrum of frequencies. Unison is a real game changer, I like much Helios & Neve premps.Read More
Realtime Analog Classics Plus Bundle
With the Realtime Analog Classics Plus plug-in bundle, you not only get legendary compressors such as the Fairchild® 670 and EQs like the Pultec® EQP-1A, but also stunning guitar and bass amp emulations from Softube, and UA’s landmark 610-B Tube Preamp and EQ plug-in.
- UA 610‐B
- Marshall Plexi Classic Amplifier
- Fairchild 670 Legacy
- Teletronix LA‐2A Legacy
- UA 1176LN Legacy
- UA 1176SE Legacy
- Pultec EQP‐1A Legacy
- Pultec Pro Legacy
- Ampeg® SVT-VR Classic Bass Amp
- Precision Channel Strip
- Precision Reflection Engine
- Precision Delay Modulation
- Precision Delay Modulation L
- UA Precision Enhancer Hz
- Raw Distortion
UA 610-B Tube Preamp and EQ
Impart your tracks with the iconic warmth and character of the classic hardware used to track everyone from Duke Ellington to Coldplay. By emulating the entire signal path, including tube amplifiers, transformers, and circuit nonlinearities, the 610-B Tube Preamp and EQ plug-in injects organic detail and saturation to any signal — whether you’re re-amping or tracking through the 610-B via Universal Audio’s Unison™ technology.
Marshall® Plexi Classic Amplifier
The undisputed alpha dog of rock and roll guitar amps, the Marshall “plexi” amplifier is as legendary as the music it helped create. From Jimi Hendrix to Jimmy Page, Duane Allman to Eric Clapton, the Plexi’s punishing melange of snarl, sustain, smoothness, and raunch defined the sound of rock. Developed by Softube, the Marshall Plexi Classic Amp plug-in gives you the sound of this iconic amp with a perfectly placed microphone from engineer Tony Platt who recorded AC/DC’s Back in Black and Highway to Hell.
Fairchild® 670 (Legacy)
The world’s most coveted compressor, the classic Fairchild 670 tube limiter will give your tracks and mixes unmistakable tube warmth and character. Whether you’re looking for subtle compression on a lead vocal, or grittier textures that can work on guitars, bass, or a drum bus, the Fairchild 670 plug-in adds a classic “glow” to anything you run through it.
Teletronix® LA-2A Classic Leveling Amplifier (Legacy)
With its gentle, program dependent optical compression and meticulously designed tube amplifier, the LA-2A is the go-to compressor for professional mixers around the world — especially for vocals. Incredibly easy-to-use Peak Reduction and Gain controls gives you the ideal optical compression sound for guitar, bass, drums, and more.
1176SE/LN® Classic Limiting Amplifiers (Legacy)
Get classic, ultra-fast FET compression from the world’s most recognized compressor. The 1176 will impart punch, presence, and character as well as its signature distortion overtones on drums, vocals, guitars, and bass. The 1176LN has graced countless recordings, from Led Zeppelin, to the White Stripes and Michael Jackson.
Pultec® Pro Equalizers (Legacy)
Mix with two of the most sought-after hardware EQs ever made — the MEQ-5 Midrange Equalizer and the EQP-1A Program Equalizer. Both of these tube-based icons deliver smooth and silky EQ curves with an abundance of warm analog character.
Ampeg® SVT-VR Classic Bass Amp
Introduced in 1969, the Ampeg SVT bass amp is still the reigning king of high-powered tube bass tone. Developed by Brainworx, the Ampeg SVT-VR Classic Bass Amp plug-in perfectly captures the raw power and punch that has made this the go-to amp for rock, funk, and soul players. Track in real time using Unison™ preamp technology for the tone, touch, and feel of a real SVT bass amp, or transform bland DI tracks with the thunderous roar of a stone cold classic.
Precision Mix Rack Collection
Featuring the Precision Channel Strip, Precision Reflection Engine, and Precision Delay Modulation plug-ins, the Precision Mix Rack Collection offers four modern, high-fidelity plug-ins for recording and mixing. Powerful and intuitive, Precision Mix Rack Collection gives you an impressive tool set — perfect for beginners and seasoned professionals alike.
UA Precision Enhancer Hz
Expertly dial-in your music’s low-end frequencies with the Precision Enhancer Hz plug-in. Able to yield exacting results with minimal adjustment, the Precision Enhancer Hz can add weight to kick drum samples, fatten up a synth bass, or simply make the low-end of your tracks more audible on smaller speakers.
Modeled from a vintage early-’80s Pro Co Rat, Raw Distortion delivers all the gritty dynamic raunch of the legendary stompbox. And with Unison™ technology, you can plug in to Apollo Twin, 8, or 8p’s front-panel Hi-Z instrument jack and experience the same circuit interaction, gain range, and clip points for the true tone, feel, and response of the original hardware.
RealVerb Pro is a flexible, natural sounding reverb based on UA’s own unique set of algorithms. Allowing you to design the room just as you hear it, the RealVerb Pro goes beyond simply big/small or dark/bright, giving your sources distortion-free, smoothing diffusion control and ultra-long reverb tail.
Apollo x8 Features & Specs
- 18 x 24 Thunderbolt 3 audio interface with class-leading 24-bit/192 KHz conversion (backwards compatible with Thunderbolt 1 & 2 on Mac)
- Realtime UAD HEXA Core Processing for tracking through UAD plug-ins at near-zero latency, regardless of audio buffer size
- Record through 4 Unison-enabled mic/line preamps — giving you fully authentic preamp emulations from Neve, API, Manley, SSL, and more†
- Includes access to LUNA Recording System for a fully-integrated, analog inspired Apollo workflow
- Surround monitor controller up to 7.1 format
- Includes the "Realtime Analog Classics Plus" UAD plug-in bundle. Other UAD plug-ins sold separately.
- UAD HEXA Core processing onboard for additional mixing horsepower for Pro Tools, Logic, Cubase, Ableton, and other major DAWs
- Combine up to 4 Thunderbolt-equipped Apollos and 6 total UAD devices
- Selectable +24 dBu operation for easy compatibility with professional mixing consoles and tape machines
- Convenient front panel monitoring functions including Alt Speakers, Talkback mic, and assignable Dim or Mono
- Free, industry-leading technical support — on the phone and online — from knowledgeable audio engineers
- To see full system requirements, click here.
Inputs Line Inputs 8 Balanced ¼" TRS Microphone Inputs 4 Balanced XLR Instrument (Hi-Z) Inputs 2 Unbalanced ¼" TS Digital Inputs (Optical TOSLINK) ADAT: 8 channels @ 44.1 – 96 kHz
ADAT: 4 channels @ 176.4 – 192 kHz
Digital Inputs (RCA) S/PDIF: 2 channels @ 44.1 – 192 kHz A to D Conversion Mic Preamps Dynamic Range: 122 dB (A-weighted)
THD+N: -115 dB (0.00019%)
Frequency Response: 20 Hz – 20 kHz, ±0.05 dB
Line Inputs Dynamic Range: 123 dB (A-weighted)
THD+N: -113 dB (0.00022%)
Frequency Response: 20 Hz – 20 kHz, ±0.04 dB
Outputs Line Outputs 8 Balanced ¼" TRS Monitor Outputs 2 Balanced ¼" TRS Headphone Outputs 2 Stereo ¼" TRS Digital Outputs (Optical TOSLINK) ADAT: 8 channels @ 44.1 – 96 kHz
ADAT: 4 channels @ 176.4 – 192 kHz
Digital Outputs (RCA) S/PDIF: 2 channels @ 44.1 to 192 kHz D to A Conversion Line Outputs Dynamic Range: 127 dB (A-weighted)
THD+N: -118 dB (0.00011%)
Frequency Response: 20 Hz – 20 kHz, ±0.07 dB
Monitor Outputs Dynamic Range: 129 dB (A-weighted)
THD+N: -118 dB (0.00012%)
Frequency Response: 20 Hz – 20 kHz, ±0.06 dB
Headphone Outputs Dynamic Range: 125 dB (A-weighted)
THD+N: -102 dB (0.00080%)
Frequency Response: 20 Hz – 20 kHz, ±0.05 dB
I’ve had, and still have an Apollo twin MKII since 2018 and it did me justice. I didn’t really think the new converters would be THAT much of a difference, but they really do! Super clean, and the build is solid! If I had to do it all over again when upgrading the studio, I would have bought this first. Also, I love the fact that the MKII can be used as a controller AND control a third set of monitors if you have them.
Sounds great and plays well with my other Apollos! A TB cable would be nice for the price.
Very good audio interface but sonically not at the top
A universally good and professional audio interface when it comes to having everything in one box. The Apollo x8 is professional through and through. In direct comparison to a Lynx Aurora or Metric Halo LIO / ULN, the x8 is - purely in terms of sound - a league below. However, I would also say that the Apollo x8 interface in combination with UA´s Console or also the LUNA DAW offers the best and also the most straightforward, overall musical recording package on the market.
Superb for tracking.
In 2022 we'd expect AD/DA conversion and playback to be of high quality and preamps to be detailed and sound good. The Apollo x8 does not disappoint.
Where the unit becomes incredible is for tracking, with the Unison Preamps and in line UAD effects, whether for monitoring or printing or any combination.
I did not think there was a serious contender to HDX but UA have built one. Latency is (very) low enough to not matter even to vocal performers and multiple headphone mixes, monitoring with multiple FX in the chain. Baking in the sound you want to hear with the excellent UAD plugs has never been easier.
I had incredibly high expectations when I bought the Apollo X8. It has exceeded every expcatiation that I had. Amazing Interface!
Exactly what was expected
I had a lot of others audio interfaces but this one is the most precise and clear in the all spectrum of frequencies. Unison is a real game changer, I like much Helios & Neve premps.
Great interface - conversion is stellar, the plug-ins are out of this world, albeit a little on the expensive side, and the routing software is a breeze after the first day… Would highly recommend!
With the Apollo X8 i reached my destination!
Coming from several Focusrite Interfaces, i decided to do the step to a professional interface. After a few weeks of recording, I absolutely do not regret this decision to buy the UAD Apollo X8. The DSP Power, the low latency, the pristine preamps and most important for my workflow the console with all it's routing and DSP-Plugin integration was more than a game changer for me.
For now, there is no reason for me to change this setting in the future. Best Interface I ever owned!
Best interface I’ve ever owned!
This thing is incredible. The hexacore finally allows me to use a tonne of plugins for mixing, which intact is terrible for my wallet, buuuut their plugins are so worth it. Great I/O for routing outboard gear and guitar pedals. Only thing I would grumble about is how clunky the console app is still. I’ve owned an Apollo Solo for a year now and when switching between the two it gets really confused and screws up the I/O matrix even when loading presets for either interface. Maybe I just don’t know how to use it properly haha. Other than that I’m obsessed!
I have be recording songs for over 30 years from two track tape to the first computers dedicated to recording and always felt that something was holding me back . I now know there was, I didn't have a Apollo
The plugins on the Apollo do sound like you thought they would and I have just used the Marshall amp in the unison slot and it records so well I don't know if I will us my amps again
so as a fist time user just starting to use the Apollo all i can say is wow and if this is read by someone with out one. From a ordinary guy that has to work hard for money and is just wanting to make music that sounds well recorded you really can not get better than the Apollo 8
Great quality product
I bought this as an upgrade for my home studio from an entry level interface. The quality is instantly noticeable. The unison preamps are fantastic and the top end AD conversion really helps capture the character of my outboard synths without adding any unwanted character.
Met my expectations as soon as I used it. Seamless integration with Twin X quad and Quad Satellite.
It works every time. Great tracking results, less to do at mix time, especially with the new API Console in LUNA. Will be getting the X8P next, that will give me 14 unison slots. To those just getting into the UA family, I do it one piece at a time. Then I make decisions on what my needs are, these are not toys, but tools, serious tools.
Amazing and well thought out. Zero latency finally!
It’s just an amazing interface, so flexible and simply works! The fact that you can record and track with no perceivable latency is truly amazing. Love it! Also so many ways to color and control the sound with unison plugins makes me feel like a little boy in a huge sand box. Also their support is excellent. Thank you UA!
I love the quality of my new Apollo!!
I love the new workflow that this machine allows me to have and finally, i have a creative feel to be in control of the sound during my recording sessions!
Near perfect, lacking external sidechain
The x8 is insane. UA is paving the way here and I love being able to track in real-time with the Unison Pres. I see that UA is adding more and more modern plugins to their DSP list (Sonnex, Antares, etc.) and external sidechain support is becoming more and more of a gaping hole in functionality. Not a big deal with some of the classics that didn't even have true sidechain support (no need to hack those) but modern software plugins are shipping with this type of functionality as table stakes these days.
Would love to see this functionality, even if it's not enabled at the Unison level.
While I see a review or two on poor customer service, mine has been great. They've even responded to me outside of normal biz hours via email.
sloppy customer service
I bought a Apollo 8 thunderbolt a few years ago. The thunderbolt port broke (not sure how and why). I have been trying to get it repaired for more than a year now. Covid has made that an impossible process, I understand that there are delays but at this point I don't see how the delay, this kind of delay, is acceptable. I had to buy another interface and keep getting negative responses from customer service, Never going to buy anything UA again!
A step up
Been using Apollo units for about a decade. Started with silver, then black and now the X8. I find both the monitoring and recording conversion of the X8 a step up from the previous generations. Very, very clear, no graininess. Very pleased!
A bigger difference than I originally thought…
All I can say is…wow! I didn’t think that the difference from the Blackface Apollo 8 to this would be as significant as it is. Improved A/D and D/A conversation, better depth and stereo imaging, and more DSP are all things this x8 improved upon! Well worth it!
The sound has changed dramatically
I used to use the Apollo Duo, but the sound has changed dramatically compared to that, and I can now see the sound of the synth even with fine particles. If in doubt, buy it.
Beautiful sound quality
I upgraded from an 6 year old USB Twin and the difference is far more than I expected. I wasn't sure about the sound of the highs but I gave it a couple days for my ears to adjust. The sound stage is wide, deep and detailed in a whole new way. Love listening to everything all over again. Creating and mixing is going to an absolute pleasure with this for years again.