The Universal Audio Volt 4 Gen 2 is a 12-in/6-out USB audio interface designed for recording, production, and content creation at home or on the go. With 32-bit / 192 kHz conversion, two Tone Shaping Preamps, four analog line inputs, ADAT or S/PDIF expansion, and MIDI I/O, Volt 4 provides flexible connectivity for microphones, instruments, synths, and outboard gear.
The two Tone Shaping Preamps offer up to 60 dB of gain and three selectable modes—Warmth, Focus, and Shine—for adding different analog-inspired character to your recordings. Auto-Gain helps quickly set appropriate recording levels, while Clip Protection helps prevent unexpected peaks from ruining a take. A full-color Smart Display provides clear visual feedback for input levels and settings.
Volt 4 can be expanded through its optical input, supporting up to eight channels of ADAT at 44.1/48 kHz, with S/MUX support at higher sample rates. MIDI In and Out provide connectivity for keyboards, controllers, and synths, while the built-in USB hub can connect peripherals and power compatible MIDI controllers. Loopback functionality also makes Volt 4 suitable for podcasting, livestreaming, and other content-creation applications.
The interface is USB bus-powered and class-compliant, making it easy to use with Mac, Windows, iPad, and iPhone systems. It integrates with the UAD Console app and LUNA, and includes the UAD Volt Studio Bundle along with additional software from Celemony, Plugin Alliance, UJAM, UVI, Splice, and FL Studio.
Features
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12-in / 6-out USB audio interface
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32-bit / 192 kHz A/D and D/A conversion
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Two Tone Shaping Preamps with up to 60 dB of gain
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Warmth, Focus, and Shine preamp modes
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Two mic/line inputs with front-panel Hi-Z instrument inputs
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Four analog line inputs
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ADAT or S/PDIF optical input for digital expansion
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MIDI In and Out via 1/8" TRS MIDI Type A
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Full-color Smart Display
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Auto-Gain and Clip Protection
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Independent 48V phantom power per channel
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Built-in USB hub for peripherals
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Built-in loopback for streaming and content creation
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UAD Console and LUNA integration
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USB bus-powered
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Compatible with Mac, Windows, iPad, and iPhone
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Includes UAD plug-ins, instruments, LUNA, and additional software
Specifications
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Simultaneous I/O: 12-in / 6-out
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Microphone Preamps: 2, 60 dB available gain
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Monitor Outputs: 1 stereo
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Headphone Outputs: 1 stereo with 1 cue mix
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USB: USB 2.0 Type-C
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USB Hub: 5V DC, 0.5A maximum
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Digital I/O: ADAT or S/PDIF optical input
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ADAT: 8 channels at 44.1/48 kHz; 4 channels at 96 kHz; 2 channels at 192 kHz
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S/PDIF: 2 channels at supported sample rates
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MIDI: In/Out, 1/8" TRS Mini-Jack, MIDI Type A
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Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
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Bit Depth: 32-bit
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Instrument Inputs: 1/4" TS unbalanced, 1 MΩ impedance, 13 dBu maximum input level
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Microphone Inputs: XLR combo, 2 kΩ impedance, 14 dBu maximum input level
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Line Inputs: 1/4" combo, balanced TRS / unbalanced TS, 10 kΩ impedance, 22 dBu maximum input level
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Monitor/Line Outputs: 1/4" TRS balanced, 20.2 dBu maximum output level
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Headphone Output: 1/4" TRS stereo, 45 mW into 32 Ω / 24 mW into 300 Ω
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Phantom Power: +48V, switchable per channel
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Power: USB bus-powered, 4.2 W typical / 5.8 W maximum
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Operating Systems: Windows 10 64-bit or newer, macOS 12 or newer, iPadOS/iOS 16 or newer
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DAW Compatibility: Ableton Live, FL Studio, GarageBand, Logic Pro, Pro Tools, and other major DAWs