Universal Audio Apollo X4 Thunderbolt 3 Audio Interface (Heritage Edition)


RRP $5,499.00
SAVE $1,570.00

Apollo X4 Heritage Edition is a premium Thunderbolt 3 audio interface offering elite-class A/D and D/A conversion, QUAD Core real-time UAD plug-in processing, Unison-enabled mic preamps, and full LUNA Recording System integration.


Apollo x4 Heritage Edition has all the benefits of the acclaimed Apollo x4, including elite-class A/D and D/A conversion, QUAD Core realtime UAD plug-in processing, Unison-enabled mic preamps, and full LUNA Recording System integration. And it goes a step further, with a software suite of 10 award-winning UAD plug-in titles, featuring Collections from Helios,® Fairchild,® Teletronix,® Pultec,®and UA.

Please Note: This product requires a Thunderbolt cable; there is no Thunderbolt cable provided with the unit.


Universal Audio Apollo X4 – Heritage Edition

The new Apollo Heritage Editions give you a premium software suite of 5 UAD plug‑in titles — including the full Collections from Teletronix,® Fairchild,® Pultec,® Helios,® and UA.


The Universal Audio Apollo X4 is a Thunderbolt 3 Audio Interface for musicians and producers. Allowing you to easily track, overdub, and mix larger projects thanks to a number of state-of-the-art features. Including elite-class AD/DA conversion, 4 Unison-enabled preamps, as well as QUAD core realtime UAD plug-in processing. All in a desktop Thunderbolt 3 audio interface that’s compatible with both Mac and Windows.

Built upon the renowned Universal Audio craftsmanship, Apollo X4 easily outperforms all else. Delivering 127 dB D/A dynamic range and a plethora of emulation plugins; Apollo X gives you a fully-stocked analog studio, right on your desktop.


4 Unison Mic Preamps

Sporting 4 Unison-enabled mic preamps, the Apollo X4 lets you track through several renowned mic preamp emulations. Giving you options from Neve, Helios, API, Manley, Universal Audio, and many more. Exclusive to UA audio interfaces, Unison hits the nail on the head with these sought after mic emulations. Accurately replicating their input impedance, gain stage “sweet spots”, and the component-level circuit behaviors of the original hardware.

So what’s the secret? Its hardware-software integration between the preamps, and the Apollo X4’s onboard UAD QUAD DSP Acceleration. Simply throw a Unison preamp plug-in on your mic input, and it will physically reconfigure the Apollo X4’s impedance. So you can perfectly tap into the classic sounds of the most-loved preamps.


Elite-Class AD DA Conversion

Another groundbreaking feature is the Apollo X4’s ADDA Conversion. Improving on the already class-leading audio conversion, Universal Audio has completely redesigned the X4’s audio conversion. Delivering a striking 127 dB dynamic range and -117 dB THD+N. As a result, the Apollo X4 has a spacious and organic sound that easily rivals dedicated high-end converters.


A Full Suite of Analog Processing

Furthermore, straight out of the box, the Apollo X4 gives you a suite of incredible analog emulation plug-ins. Including the world’s only authentic Teletronix LA-2A, 1176LN, Fairchild 670, Pultec EQs, and the UA 610-B Tube Preamp EQ. Developed by the world-renowned tea, of engineers, these plug-ins easily set the standard for all other emulation plug-ins.

So whether its the tube warmth of the Pultec EQ on guitars, or the gentle limiting of the LA-2A on your vocals. Your recordings will take a giant leap forward with a rich, sonically complex analog sound.


The Choice of Audio Professionals

Finally, the Universal Audio Apollo series is the confirmed choice of hit-making professionals. These renowned audio interfaces have been used to record several notable albums. Including artists by the likes of Kendrick Lamar, Chris Stapleton, Arcade Fire, and Post Malone. Not to mention, Apollo X4 and the Apollo family has won numerous industry awards. Such as Sound on Sound, Future Music, Electronic Musician, and the prestigious TEC Award for audio hardware.


For more information on the Universal Audio Apollo X4 Heritage Edition, please visit the manufacturer's website.



System Requirements:

  • Available Thunderbolt 3 Port - Please Note: this unit does not come with a Thunderbolt cable

  • Internet connection to download software and authorize UAD plug-ins

  • 6 gigabytes available storage


For additional compatibility information, visit help.uaudio.com



  • macOS 10.12 Sierra, 10.13 High Sierra, 10.14 Mojave, 10.15 Catalina, or 11 Big Sur


  • Quad Core i7 or better processor recommended

  • Windows 10 (64-Bit Edition)


Model # UA-APX4H
Barcode # 819937003097
Brand Universal Audio

12 Months



  • A special edition of UA's acclaimed Apollo x4 interface — with a premium suite of 10 award-winning plug-in titles from Helios,® Fairchild,® Teletronix,® Pultec,® UA, and more — a $2,400 value

  • Elite-class A/D and D/A conversion derived from the Apollo X rackmount interfaces

  • 4 Unison mic preamps offer stunning models of classic tube and transformer-based mic preamps and guitar amps

  • UAD QUAD Core Processing for tracking through vintage compressors, EQs, tape machines, mic preamps, and guitar amp plug-ins with near-zero latency

  • Produce with LUNA Recording System — a fully-integrated recording application made for Apollo (Mac only) 

  • Runs UAD Powered Plug-Ins via VST, AU, and AAX 64 in all major DAWs

  • Compatible with Logic Pro, Pro Tools, Cubase, Ableton Live, and more

  • Dual front-panel Unison-enabled Hi-Z instrument inputs and headphone outs

  • Built-in Talkback mic for communication with studio talent and recording slate cues

  • Dedicated monitor functionality including monitor remote functions and Mono, Mute, DIM, and ALT monitor controls 

  • Up to 8 channels of additional digital input via optical ADAT/SPDIF 

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

  • Uncompromising analog design, superior components, and premium build quality

  • Free, industry-leading technical support — on the phone and online — from knowledgeable audio engineers


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