Universal Audio Apollo x4 Thunderbolt 3 Desktop Audio Interface

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. The optical digital ports accommodate up eight channels of ADAT I/O or two channels of S/PDIF I/O 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.
General Features
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 (Thunderbolt cable available separately)
Free, industry-leading phone/online technical support from knowledgeable audio engineers
Versatile I/O
A 12 x 18 audio interface with four Unison-enabled microphone preamps, providing emulations of classic analog preamps with near-zero latency
Two front-panel, Unison-enabled 1/4" Hi-Z inputs for direct connection of guitars, basses, or keyboards
Four XLR-1/4" combo mic/line inputs
Stereo 1/4" monitor output and two independent 1/4" headphone outputs, each with dedicated level control
Four 1/4" line-level outputs (may be used for alternate monitor outputs)
Up to eight channels of additional I/O via TOSLINK ADAT optical portseight channels at 44.1 / 48 kHz, four channels at 88.2 / 96 kHz, or two channels at 176.4 / 192 kHz
TOSLINK ports may be used for stereo S/PDIF I/O instead of multichannel ADAT
Expandable
Cascade up to four Thunderbolt-equipped Apollo interfaces and six UAD-2 Thunderbolt