Essential Information About the Universal Audio Apollo x4 Audio Interface
- 4 Unison preamps and UAD-2 Quad DSP for real-time recording and mixing with near-zero latency.
- High-end 24-bit / 192 kHz converters offering a dynamic range of 127 dB for exemplary monitoring accuracy.
- Advanced monitoring with Auto-Gain, bass manager, plug-in scenes, and dedicated Mono/Mute/DIM/ALT controls.
- Full desktop format: 4 mic/line inputs, 2 front-panel Hi-Z inputs, ADAT/SPDIF optical I/O, 4 line outputs, 2 Monitor outputs, and 2 headphone outputs.
From the Apollo Twin to the Apollo x4: Desktop Power Steps Up
A direct evolution of the iconic Apollo Twin, the Apollo x4 takes the desktop interface concept further with more inputs/outputs, two additional preamps, and enhanced monitoring features. Its latest-generation 24-bit / 192 kHz A/D and D/A conversion and Apollo Monitor Correction powered by Sonarworks technology provide ultra-reliable working listening, whether on speakers or headphones.
Who Is It For and What Is It For?
Designed for demanding home studios as well as small professional setups, the Apollo x4 excels at multi-source recording (vocals, guitars, synths) and hybrid mixing. Its four preamps and two front-panel Hi-Z inputs simplify sessions with singers and instrumentalists, while ADAT allows quick expansion of input count for drums or live setups.
Key Features to Work Faster and Better
Real-Time Unison
The four Unison preamps replicate the impedance, gain curve, and harmonic behavior of legendary preamps and console channels. Record through iconic plug-ins like Neve, Manley, or API to capture the desired analog character right at the source.
Precision Conversion and Monitoring
Thanks to converters offering 127 dB of dynamic range, the Apollo x4 delivers remarkable detail. Apollo Monitor Correction (by Sonarworks) helps neutralize room flaws to achieve more confident mixing decisions and masters that translate everywhere.
UAD-2 Quad DSP and Studio+ Bundle
The UAD-2 Quad processor handles UAD effects to free up the computer's CPU and ensure inspiring live monitoring. The Studio+ plug-in bundle includes essentials like the "Teletronix LA-2A" compressors, "Pultec" equalizers, and "Marshall" and "Ampeg" amp emulations to shape your recordings and mixes.
Studio Ergonomics
The UAD Console software centralizes routing, plug-in scenes, and new monitoring tools (Auto-Gain, bass manager). Dedicated physical controls, built-in talkback mic, and dual headphone outputs facilitate collaborative work and guided recording sessions.
Technical Specifications
Audio and Conversion
- A/D and D/A Converter - 24 bits/192 kHz
- Dynamic Range: 127 dB
Inputs
- 4 Unison microphone preamplifiers
- 4 microphone/line inputs on combo XLR/6.3 mm Jack connectors
- 2 Hi-Z instrument inputs on 6.3 mm Jack (front panel)
Outputs
- 4 line outputs on 6.3 mm Jack
- 2 Monitor outputs on 6.3 mm Jack
- 2 stereo headphone outputs on 6.3 mm Jack
Digital Extensions
- Optical ADAT/SPDIF input/output
Connectivity and Processing
- Thunderbolt 3 audio interface
- With UAD-2 Quad processor
- Thunderbolt 3 port (optional Thunderbolt cable not included)
Monitoring and Control
- Monitoring functions with controls for Mono, Mute, DIM, and ALT
- Auto-Gain function
- Built-in Talkback microphone
- Includes: Studio+ plug-in bundle
Compatibility and Power
- For Mac OS and Windows
- Input for external power supply unit
- +48 V phantom power
Format
- Dimensions (W x H x D): 233 x 151 x 66 mm
- Weight: 1.46 kg
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