Universal Audio Apollo x4 | Gen 2 (Studio+)

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 the highest-resolution audio conversion, four Unison™ mic preamps, and QUAD Core DSP processing, letting you record in real-time 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 real-time 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 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, but 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.

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