Apollo x8

Apollo x8

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  • Included Plug-Ins
  • Features
  • Customer Reviews
  • 4.9/5
    (15 reviews)
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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 new world-beating 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 PC.

Built upon UA’s 60-year heritage of audio craftsmanship, this 18 x 24 interface distinguishes itself with four Unison™-enabled mic preamps, providing authentic emulations of preamps from Neve, API, Manley, SSL, and more, plus all-new HEXA Core processing — yielding 50% more DSP for running UAD Powered Plug-Ins in real time.

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

Integrate with high-end commercial systems, via 7.1 surround sound monitoring and selectable +24 dBu headroom

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
Watch the Unison Shoot Out

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<br>Analog Processing Onboard

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

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.

*Surround Sound Support for Apollo X Coming Q4 2018.

Build an Expanded Studio System Over Thunderbolt

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.

Apollo X Tech Talk
Apollo X Tech Talk

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.

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 2016 TEC Award for computer audio hardware.

Apollo Artist Sessions
Apollo Artist Sessions

Apollo Artist Sessions

Preservation Hall Jazz Band
“Higher Ground”

View All Apollo Artist Sessions

Owner's Manual

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
  • RealVerb‐Pro

UA 610-B Tube Preamp and EQ

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<sup>®</sup> Plexi Classic Amplifier

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<sup>®</sup> 670 (Legacy)

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<sup>®</sup> LA-2A Classic Leveling Amplifier (Legacy)

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<sup>®</sup> Classic Limiting Amplifiers (Legacy)

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<sup>®</sup> Pro Equalizers (Legacy)

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<sup>®</sup> SVT-VR Classic Bass Amp

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

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

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.

Raw Distortion

Raw Distortion

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

RealVerb Pro

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†

  • Surround monitor controller up to 7.1 format*

  • Includes “Realtime Analog Classics Plus” UAD plug-in bundle featuring UA 610-B Tube Preamp; Legacy Pultec EQ, LA-2A, and 1176 compressors; Marshall Plexi Classic; Ampeg SVT-VR Classic, and more

  • 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

*Surround Sound Support for Apollo X Coming Q4 2018.

Interface Specifications

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
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

Apollo X Series System Requirements


  • Thunderbolt 3 cable (not included)
  • Internet connection to download software and authorize UAD plug-ins
  • 6 gigabytes available storage
  • Quad Core i7 or better processor recommended
  • For additional compatibility information, visit help.uaudio.com


  • Available Thunderbolt 1, 2, or 3 port
  • Thunderbolt 1 and 2 connections require an Apple Thunderbolt 3 to Thunderbolt 2 Adapter (not included)
  • macOS 10.12 Sierra or 10.13 High Sierra


  • Available Thunderbolt 3 port
  • Windows 10 Fall Creators Update (64-Bit Edition)

Customer Reviews

Apollo x8

Overall Rating

(15 reviews)

D. Craver

November 15, 2018

top shelf conversion

Just finished my first project start-to-finish on the x8, and i am blown away by how natural and rich everything sounds. coming from Twin MKII and black 8P previously. this new X series sounds astonishing. no weird mid-forward, top end smearing. I have been a big fan of the Apollo workflow for a few years now, but after working at a studio with Burl conversion I always felt like I was missing that sort of effortless quality that I got from the Burl. I can say my new x8 does conversion on the same level- there is no digital sound signature to this box, just wide open and smooth. I felt like a fanboy purchasing this just weeks after it came out, but I'm so happy to know that this unit has me covered for years to come and I won't need to restructure my studio workflow (and open a new credit line) to outfit to high end stand-alone convertors. Would love to see an update to Console that could maybe allow for room eq correction. thanks UA!

r. gonzalez bernal

November 6, 2018

3rd generation Apollo

Y esta es la tercera generación de Apollo Rack, fue a principios de 2013 cuando compre la primera generación me sorprendió por la calidad de los conversores, el tener DSP’S integrados, después a mediados de 2015 cambie a la segunda generación con mejoras en los conversores y también con la nueva versión de Console que presentaron antes del lanzamiento y de serie con Thunderbolt incluido y ahora he renovado con la tercera generación de Apollo, siguiendo con las mejoras en los conversores y previos de micro, el añadido de más DSP’S ( 6 Dsp’s ahora en todos los modelos ) puertos Thunderbolt 3 totalmente compatible con Thunderbolt 1 y 2 con los adaptadores de Apple lo tengo conectado a un Macpro de 2013 el cilindro y sin ningún problema lo único que echo en falta es una aplicación para iPad para poder controlar Console y todo con el mejor trato y servicio posventa de Masacoustics que siempre me han resuelto las dudas y aportado soluciones y con el mejor precio de Europa , gracias a Lluís Moreno y su equipo de lo mejor que ahí.

P. Barry

November 3, 2018

Apollo X launches

Big sound improvement on the old FireWire ensemble I used previously. Working with Twin gives loads of DSP!

M. Dannells

October 31, 2018

Huge Improvement over 1st Generation!

I just got an x8 to replace my original Silverface 1st generation Quad. Big difference! I'm running more than 20 of the most DSP hungry plugs (Oceanway Studio, 2 Fatsos, Manley VOXBOX, 6 Neve 88RS-Not the Legacy Version! Plus plenty more) on my 2015 iMac, and I'm at only around 75% usage. Maybe it's the new converters, or maybe the plug-ins are running more efficiently (probably both), but mixes have WAY more clarity and depth.

The only issue I've had so far is recalling my old console presets. It takes a pretty easy extra step or two, but the UAD Forum Team helped me figure it out. Very Impressed!

P. Jones

October 31, 2018

Very clean and detailed interface.

Earlier this month I gave a customer review of 3 stars because I wasn’t satisfied with how the bass sounded or the lack of bass compared to the Apollo Twin but after having the X8 for over a week I’m really starting to enjoy it much better and I think that the biggest thing for me to get used to was tuning my ears to how the X8 sounds. I’ve been so used to the Apollo Twin for so long that it took me a couple of days to get used to the X8 but now I’m really digging the X8. It has so much more clarity and depth than the Apollo Twin or the Apollo 8 duo. I would definitely recommend the X8, it is very much a step up from its predecessors.

H. Way

October 20, 2018

Simply the best!

I am really happy with this unit. I upgraded from the Apollo 8 MKII and right away I could here a big difference with the upgraded converters and clocking. It is still built on the sample quality as the previous MKII series but with exciting new features. I had to remix a project that I was working for the better. The xtra two core really do go a long way compared to the previous four cores. It’s also nice that it has the best spec’ and even better than some stand alone converters. I even compared the spec to the Apogee Ensemble Thunderbolt and the Element and it beats them hands down and don’t get me started on how they have the best plugins on the market. If you are in the market for a interface or just looking for something better this is the one.

P. Jones

October 19, 2018

Good interface but lacks low end.

I’m coming from the Apollo Twin MK1, which sounded great, but wanted to step my game up so I purchased the Apollo X8. It sounds good with more clarity and detail than the Apollo Twin, but it lacks the low end. This is not good for me because I do music where bass is important. I compared both the Twin and X8 and listened to them thoroughly, and it became apparent quickly that I was not hearing as much bass on the X8. My monitors are the KRK V8 series 4 which has enough low end that I decided to sell my sub, this is with the Apollo Twin connected, but with the X8 connected now my KRKs sound like I need a sub so that I can hear the bass. Everything on the X8 is nice with the exception of the low end. I’ve seen a lot of 5 star reviews but no reviews from people who do music that is bass dependent. I would love to see their reviews. This is my raw opinion after having it for less than a day.

J. Monk

October 9, 2018

Bullet proof

The Apollo x8 integrated seamlessly with my DAW, the included plugins are accurate representations of their analog counterparts, and the DSP processing power is incredible - I have loaded this thing up and have yet to use half the capacity of the 6 onboard SHARQ DSPs. The new Apollo X is a must have.

l. laing

October 6, 2018


Exceeded expectations. Bought a Quad within the first month of its release years ago...did the same thing with the 8. This thing sounds so good ... natural, Rich, and clean. The Apollo has made making music so much easier for me...and it helps me to continue to make a comfortable living from it. Thx UAD....my studio’s never sounded better

S. Keys

October 5, 2018

Thanks UAD the dream is here.back to the future

Once or the Best sound card ever with 70’s plugins. I had to replace il in the middle of a mix with an apollo 8 and the sound was différent. So I had to do my mix again,but sounds better now and much more power.

C. Knox

October 3, 2018

Apollo X8

Simply the best Audio interface I have owned...the only disappointment is that UAD should have made all the converters identical tp 133db. However the clarity of the X8 is fantastic - its clearer than the Apollo 8 in the high end. I have read about people comparing other interfaces based on superior converters however the X8 does it for me...crystal clear and beautifully designed with extremely low Latency with Thunderbolt 3 - its a clear winner. The routing functionality , ergonomic design, soft relay switching at power on and power down/switch on low latency and its ease of use leads the pack.
I could not imagine using another unit because supposedly its converters are better - because the added value of what I consider to be the best plug ins in the market - help me to craft a mix that reflects how I artistically want to have it reflected...in short the Apollo and UAD products allow me to pain the sonic picture in my head that I want to create....with relative ease...well done UAD and well done Bill Putnam Jr - I have talked to you on the phone personally about your products and service and you and your company have always stepped up to the mark! great service back up and knowledge enable producers to enjoy production - thanks!!

m. oosato

October 1, 2018

All I need is Apollo x8

I mainly use this device for 4ch. recording. When I need more channels, use TRS and ADAT ports from my main mixer up to 16ch. High Quality Sound and stable. So happy to have one!

R. Gallow

October 1, 2018

Wonderful Interface with great new features

Love my Apollo 8 so when I saw the new x8 I decided to add one to my system. The x8 adds a talkback mic which frees up a channel I used for talkback. Having 6 Cores also Allows for more plug-ins being used on input channels. I love the Unison Plug ins I use 1073's frequently along with the Marshall Plexi, Fender Deluxe and Ampeg SVT when recording tracks. I love the system.

Y. Sergeyevich

September 27, 2018

Apollo x one of the best sound cards

I'm very pleased with the new Apollo x8! Now instead of 4 processors, I have 6. You do not need an additional microphone to communicate with the artist, apollo x has a Talkback Microphone. Great sound and good design. UAD is one of the best plugins I've ever seen!

M. Rosenqvist

September 21, 2018

The Apollo X series is great!

I am really happy with the new Apollo X8 and X16. Very clean natural sound, not hyped. Nice to have 6 DSP cores in each Apollo X. Great with the +24dBu headroom setting when going to my analog hardware. The older Apollo´s is still very good, the X ones is even better.