Universal Audio Apollo x4 | Gen 2 Thunderbolt Audio Interface - UAD Analog Classics Pro

From July 1 - July 31, 2026 get a selection of the finest UAD Plug-Ins FREE worth up to $1,191 when purchasing eligible Apollo Interfaces. Free UAD software will be added to the customers UA account upon registration.

Free Plugins Include

- Anthem Analog Synthesizer

- Electra 88 Vintage Keyboard Studio

- Opal Morphing Synth

- Ravel Grand Piano

- Topline Vocal Tune

- UA 175 & 176 Tube Compressor Collection

- Vibe Analog Machines

- Waterfall B3 Organ

Create with the worlds most powerful desktop audio interface.

Record and mix larger sessions and hear every detail with the next generation of UAs Apollo x4 interfaces, featuring highest-resolution audio conversion, four Unison mic preamps, and QUAD Core DSP processing letting you record in realtime through UAD plug-ins from Auto-Tune, Neve, Manley, Avalon, SSL, and hundreds more.

Trusted by top artists and producers the world over, Apollo x4 levels up your productions with timeless sound and legendary UA craftsmanship, built to inspire your next collaboration.

Key Benefits

* Hear next generation audio conversion with the widest dynamic range and lowest distortion of any Apollo

* Experience analog tones with Unison preamps, letting you record in realtime through authentic emulations of Neve, API, Avalon, Manley, Fender, and more

* Access the full library of 200+ Apollo DSP and UAD Native plug-ins, including award-winning titles like Capitol Chambers, UAD Sound City Studios, EL8 Distressor, and more

* Mix with confidence in any room or through headphones using Apollo Monitor Correction powered by Sonarworks*

* Use Auto-Gain to set your levels across multiple inputs in seconds and never miss the take

* Hear all the low-end detail in your mixes using bass management to add a subwoofer to your monitor setup

* Quickly set up low-latency cues, plug-in scenes, and immersive audio monitoring with the UAD Console app

* Get included software worth thousands with either UAD Analog Classics or UAD Analog Classics Pro versions. Plus enjoy special upgrade pricing on even more UAD plug-ins with your purchase

Get the Most Powerful Desktop Apollo Ever

Universal Audio built Apollo x4 to expand on the gold-standard Apollo Twin, the interface that single-handedly revolutionized home and project studio recording. With its expanded I/O count, unprecedented dynamic range, and elite-class 24-bit / 192 kHz audio conversion now with enhanced monitoring Apollo x4 puts the sound of the stars in reach for project studios and collaborators.

Record Through Iconic Preamps

With four Unison preamps and dual front panel Hi‑Z instrument inputs, Apollo x4 lets you track in realtime through preamp and channel strip plug-ins from Neve, Manley, API, and dozens more, giving you the same rich analog textures used on the greatest recordings of our time.

Unlock Authentic Analog Sounds

Right out of the box, Apollo x4 gives you the plug-ins used by the worlds best engineers. Along with included Teletronix LA-2A and 1176 compressors, UA 610, Century, and LA-6176 tube channel strips, plus UAD guitar amps like Showtime 64 and Lion 68 you can tap into the entire UAD library of over 200 titles to unlock proven hit-making sounds.

Hear the Details Like Never Before

Now in its Gen 2 design, Apollo x4 features UAs highest-resolution D/A converters ever paired with Apollo Monitor Correction powered by Sonarworks. This means that when you playback your audio through monitors or headphones, youll not only hear the most pristine representation of your recordings, there will be no surprises when you listen to your final mix or master.

Find Your Flow in the UAD Console App

Just like an analog studio, where a console is the heart of the workflow, Apollo x4 has a powerful digital mixing engine where you control plug-in routing and monitoring. And with the latest features like Auto-Gain, Bass Management and Plug-In Scenes, its easy to find a flow that fits your needs.

A Hybrid System, Made for Your Mission

Combine Apollo x4s QUAD Core DSP with native processing from your host computer to produce large sessions with complex plug-in chains a powerhouse hybrid workflow that outpaces any native-only recording setup.

Expand Your Studio as You Grow

Build your studio by linking up to four Thunderbolt Apollo interfaces with up to 128 channels of premium I/O to your DAW, and control it all from your desktop using Apollo x4. So no matter how far your music takes you, an Apollo will always be in reach.

Key Features

* 12 x 18 Thunderbolt audio interface with QUAD Core DSP plug-in processing

* Four Unison mic preamps, two Hi-Z instrument inputs, optical Toslink I/O (ADAT or S/PDIF)

* Two 1/4" monitor outs, four 1/4" line outs (ALT 1 / 2), two 1/4" TRS headphone outs

* Elite-class Apollo X Gen 2 converters with 24-bit / 192 kHz resolution

* Enhanced D/A for critical monitoring and playback with 129 dB dynamic range

* Calibrate your main monitor and headphone outputs with Apollo Monitor Correction powered by Sonarworks*

* Fully-featured monitor controller with alternate speaker switching and integrated talkback for easy communication with talent

* Updated UAD Console app featuring Auto-Gain, Plug-In Scenes, subwoofer integration with Bass Management, immersive audio support, and more

* Onboard DSP supports over 200 UAD plug-ins via VST, AU, and AAX 64 formats in all major DAWs

* Includes up to 80+ UAD plug-ins with UAD Analog Classics or UAD Analog Classics Pro

* Compatible with LUNA, Logic Pro, Pro Tools, Cubase, Ableton Live, and more**

* Expandable with Thunderbolt Apollo interfaces or select models over Dante

* Free industry-leading technical support from knowledgeable audio engineers

*Requires Apollo Monitor Correction Add-on and SoundID Reference licenses, available from sonarworks.com

**For full compatibility information, refer to help.uaudio.com

Over 80 Included Plug-Ins in UAD Analog Classics Pro

Vocals & Pitch Correction (2)

Topline Vocal Suite

Topline Key Finder

Channel Strips & Preamps (19)

API Preamp

API Vision Channel Strip

API Vision Channel Strip Legacy

Avalon VT-737sp Channel Strip

CS-1 Channel Strip

Century Tube Channel Strip

Helios Type 69 Preamp & EQ

LA-6176 Signature Channel Strip

Manley Reference Microphone Preamp

Manley VOXBOX Channel Strip

Neve 1073 Preamp & EQ

Neve 88RS Channel Strip

Neve 88RS Channel Strip Legacy

Precision Channel Strip

SSL E Series Channel Strip

SSL E Series Channel Strip Legacy

UA 610-A Preamp & EQ

UA 610-B Preamp & EQ

V76 Preamplifier

Compressors / Limiters (21)

API 2500 Stereo Bus Compressor

dbx 160 Compressor / Limiter

Empirical Labs EL8 Distressor

Fairchild 660 Compressor

Fairchild 670 Compressor

Fairchild 670 Legacy Compressor

Precision Buss Compressor

SSL G Series Bus Compressor

SSL G Series Bus Compressor Legacy

Teletronix LA-2 Classic Leveler

Teletronix LA-2A Gray Classic Leveler

Teletronix LA-2A Silver Classic Leveler

Teletronix LA-2A Legacy

Teletronix LA-2A Tube Compressor

Teletronix LA-3A Classic Audio Leveler

UA 1176 FET Compressor

UA 1176 Rev A Classic Limiter

UA 1176AE Classic Limiter

UA 1176LN Rev E Classic Limiter

UA 1176LN Legacy

UA 1176SE Legacy

Equalizers (9)

Helios Type 69 Legacy EQ

Neve 1073 Legacy

Neve 1073SE Legacy

Precision Equalizer

Pultec EQP-1A Legacy EQ

Pultec EQP-1A Passive EQ

Pultec HLF-3C Passive EQ

Pultec MEQ-5 Passive EQ

Pultec Pro Legacy EQ

Special Processing (9)

A-Type Multiband Dynamic Enhancer

Ampex ATR-102 Mastering Tape Recorder

Little Labs Voice Of God Bass Resonance

Oxide Tape Recorder

Precision De-Esser

Precision Enhancer Hz

Precision Enhancer kHz

Studer A800 Multichannel Tape Recorder

Vibe Analog Machines Essentials

Instruments (1)

PolyMAX Polyphonic Synth

Delay & Modulation (8)

Brigade Chorus Pedal

Cooper Time Cube MkII Delay

EP-34 Tape Echo

Galaxy Tape Echo

KORG SDD-3000 Digital Delay

Precision Delay Mod

Precision Delay Mod L

Studio D Chorus

Reverbs & Rooms (6)

Lexicon 224 Digital Reverb

Ocean Way Studios Deluxe

Ocean Way Studios

Precision Reflection Engine

Pure Plate Reverb

UAD Sound City Studios

Mastering (3)

Precision Limiter

Precision Maximizer

Precision Multiband

Guitar & Bass (9)

Bermuda Triangle

Fender 55 Tweed Deluxe

Raw Distortion

TS Overdrive Pedal

UAD Dream 65 Reverb Amplifier

UAD Lion 68 Super Lead Amp

UAD Ruby 63 Top Boost Amplifier

UAD Showtime 64 Tube Amp

UAD Woodrow 55 Instrument Amplifier

LUNA Extensions (4)

Ampex ATR-102 Master Tape Extension

API Summing Extension

API Vision Console Emulation

Studer A800 Multitrack Tape Extension