Universal Audio Apollo X4

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The Universal Audio Apollo x4 is a desktop Thunderbolt 3 audio interface with real-time UAD processing designed for high-resolution recording and mixing for musicians, producers, and audio engineers in mobile production rigs and project studios. Delivering the sound, feel, and flow of analog recording with low distortion and an immense D/A dynamic range of 127 dB, this 12 x 18 interface combines versatile inputs and outputs, a robust plug-in bundle, and powerful UAD-2 QUAD Core processing.
Designed to perform a central role in a modern studio, the Apollo x4 offers elite-class conversion akin to the Apollo X rackmount interfaces, plus an array of analog and digital I/O. The interface features four XLR-1/4" combo inputs and two 1/4" Hi-Z inputs, all with Unison integration for UAD emulations of classic analog preamps, Each analog input boasts a switchable low-cut filter, 48V phantom power, pad, polarity inversion, and stereo linking. Digital I/O ports include 8-channel ADAT for easy hookup of external equipment.

The built-in QUAD Core processing allows you to monitor and record audio using classic analog emulations with near-zero latency. The included Realtime Analog Classics Plus plug-in bundle empowers you with 16 plug-ins ranging from compressors and EQs to virtual guitar/bass amps and time-based processors. The included Console application provides control and recall of all interface and UAD plug-in settings including channel-strip presets, drag-and-drop functionality, and dynamically resizable windows. Core Audio and Windows drivers ensure compatibility with all major DAWs, including Pro Tools, Logic Pro, Cubase, Live, and more.

The Apollo x4 offers a comprehensive monitor section with talkback functionality and dedicated front-panel controls for Alt Speakers, Dim, and Mono functions, as well as input and output metering capabilities. In addition to the dedicated stereo monitor feed and dual independent headphone outputs, four 1/4" line outputs are available for connection to power amps, active monitors, or an analog mixer. A total of four Apollo interfaces and six total UAD-2 devices can be combined, allowing Thunderbolt users the ability to expand their I/O and DSP.
  • Track, overdub, and mix, with high-resolution A/D-D/A conversion and DSP-powered plug-ins
  • Integrated talkback and cues for easy communication and slate functionality
  • Built-in monitor controller with monitor remote functions and mono, mute, dim, and alt monitor controls
  • Comprehensive front-panel metering and controls
  • Unison technology provides models of classic tube and transformer-based mic preamps and guitar amps
  • UAD-2 QUAD Core processing for tracking through models of vintage compressors, EQs, tape machines, mic preamps, and guitar amps with near-zero latency
  • Convenient desktop form factor
  • High-speed Thunderbolt 3 connectivity for Mac and Windows computers
  • Free, industry-leading phone/online technical support from knowledgeable audio engineers
Inputs 12
Outputs 18
Connection Thunderbolt