Elite Audio Conversion and Four Unison Preamps

Apollo X4 w/ Quad Core Processing

Overview

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 and Windows.

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.

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.

Specifications

•  Best in class audio quality with improved 24-bit/192 kHz conversion

• Realtime UAD Processing — monitor and track through vintage compressors, EQs, tape machines, and guitar amp/pedal plug-ins with near-zero latency

• Four premium mic/line preamps; four line outs; two front-panel Hi-Z instrument inputs, and two stereo headphone outputs

• Unison™ technology for stunning models of classic mic preamps and guitar amps

• Built-in talkback microphone for communication and recording

• Monitor remote functions can replace dedicated monitor controllers

• UAD-2 QUAD DSP processing onboard

• Thunderbolt 3 connection for blazing-fast PCIe speed on modern computers

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

• Cascade up to four Thunderbolt-equipped Apollos and six total UAD-2 devices —

• adding I/O and DSP as needed