Record and mix with the widest dynamic range and lowest noise of any desktop interface. Apollo x4 allows musicians and producers to easily track, overdub, and mix larger projects with elite-class A/D and D/A conversion, four Unison-enabled preamps, and QUAD Core realtime UAD plug-in processing — all in a desktop Thunderbolt 3 audio interface for Mac or PC.
Built upon UA’s 60-year heritage of audio craftsmanship, Apollo x4 confidently outperforms everything in its class, with 127 dB D/A dynamic range and an included bundle of UAD analog emulation plug-ins, giving you a fully-stocked analog studio, right on your desktop.
Universal Audio Apollo X4 Thunderbolt 3 Interface Features
Realtime Analog Classics Plus Bundle
- Record and mix with elite-class A/D and D/A conversion — with the widest dynamic range and lowest noise of any desktop interface
- Four Unison-enabled preamps — track larger projects with near-zero latency through preamp emulations from Helios, Neve, API, Manley, and more
- Onboard UAD QUAD Core processing lets you track and mix with UAD plug-ins like the included Teletronix LA-2A and 1176 compressors, Pultec EQs, and 610-B Tube Preamp & EQ
- Cascade up to 4 Apollo interfaces and 6 UAD-2 devices over Thunderbolt, adding DSP and I/O as your studio grows
- Apollo x4 includes the “Realtime Analog Classics” UAD plug-in bundle. Other UAD plug-ins sold separately.
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.
Four Unison Preamps: Get the Genuine Sound of Neve, Helios, API & More
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
Apollo x4 features four Unison-enabled mic preamps, letting you track through exacting mic preamp emulations from Neve, Helios, API, Manley, Universal Audio and many more. Exclusive to UA Audio Interfaces, 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 UAD QUAD 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.
Expanded I/O and Built-in Talkback Mic
In addition to its four onboard Unison-equipped preamps, Apollo x4 offers two headphone outs and two Hi-Z instrument inputs — greatly enhancing your collaborative process. Plus, with a total of four line outs, optical ADAT/SPDIF input and output, plus dedicated monitor remote controls and a built-in Talkback mic, the 12 x 18 Apollo x4 can serve as the powerful centerpiece of your professional desktop studio.
Build a Networked Studio
Users of any Thunderbolt-equipped Apollo interface can combine up to four Apollos and six total UAD-2 devices — adding I/O and DSP as your studio grows. Once you expand your studio with an Apollo x6, x8, x8p, or x16 rackmount unit, you can use Apollo x4 as a desktop monitor control while still tapping its additional I/O and DSP power.