Desktop 12 x 18 Thunderbolt audio interface with four Unison mic preamps, elite-class Apollo X Gen 2 audio conversion, Auto-Gain, Apollo Monitor Correction, Bass Management, QUAD core DSP plug-in processing, and premium software suite for Mac or Windows.

Create with the world’s most powerful desktop audio interface.

Record and mix larger sessions and hear every detail with the next generation of UA’s 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.

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 world’s 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 UA’s 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, you’ll 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, it’s easy to find a flow that fits your needs.

A Hybrid System, Made for Your Mission

Combine Apollo x4’s 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.

Features

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