Universal Audio Volt 4 Gen 2 USB Audio Interface

Bring polished, album-ready sound to your creative setup with the Universal Audio Volt 4 USB Audio Interface. Designed for musicians, producers, and creators, Volt 4 delivers an effortless recording experience that puts professional-quality sound and intuitive studio control within easy reach.

Features 

• 12-in / 6-out USB audio interface with professional 32-bit / 192 kHz audio conversion for high-resolution recording and playback.
  
• Two Tone Shaping Preamps provide 60 dB of gain with Warmth, Focus, and Shine modes for classic analog microphone preamp character.
  
• Two mic / line inputs, two front-panel Hi-Z instrument inputs, and additional line I/O support simultaneous recording and connection of outboard gear.
  
• ADAT or S/PDIF optical input provides up to eight channels of digital expansion for growing studio setups.
  
• MIDI In and Out support controllers, keyboards, and synthesizers for versatile hardware integration.
  
• Onboard USB hub connects peripherals and provides power for external MIDI controllers.
  
• Full-color Smart Display provides bright, at-a-glance visual feedback of inputs, levels, and settings.
  
• Auto-Gain and Clip Protection help maintain optimal recording levels and prevent unwanted signal peaks from ruining takes.
  
• UAD Console and LUNA integration provides session recall and low-latency cue mixes for streamlined recording workflows.
  
• Built-in loopback supports podcasting, streaming, and content creation.
  
• Independent 48V phantom power per channel supports condenser microphones and flexible multi-microphone setups.
  
• USB bus-powered and class-compliant design enables easy setup with Mac, Windows, iPad, and iPhone without an external power supply.
  
• Stylish, rugged construction is built for reliable long-term use in studio and mobile recording environments.
  
• UAD Volt Studio Bundle includes LUNA Digital Audio Workstation, Topline Vocal Tune, UA 610 Tube Preamp & EQ Collection, Century Tube Channel Strip, Teletronix LA-2A Tube Compressor, UA 1176 Classic FET Compressor, Pure Plate Reverb, Galaxy Tape Echo, Oxide Tape Recorder, Vibe Analog Machines, PolyMAX Synth, Anthem Analog Synth, UAD Lion ’68 Super Lead Amp, and UAD Showtime ’64 Tube Amp.
  
• Additional Software includes Melodyne Essential by Celemony, Ampeg SVT-VR Classic Bass Bundle by Plugin Alliance with Ampeg SVT-VR Classic, bx_Tuner and bx_Masterdesk_Classic, Virtual Drummer DEEP and Virtual Bassist DANDY by UJAM, Splice INSTRUMENT, Prisma – Producer Lab by UVI, and three months of FL Studio Producer Edition.

Specifications 

I/O
Simultaneous I/O: 12-in / 6-out
Microphone Preamps: Two, 60 dB available gain with Tone Shaping
Monitor Outputs: One stereo
Headphone Output: One stereo (one cue mix)
USB: One USB 2.0 Host port; one USB Hub port for peripherals – supplies 5VDC @ 0.5A maximum; one USB External Power input port – requires 5VDC @ 1A minimum; USB Type-C connectors
Digital / Optical: ADAT or S/PDIF optical input
MIDI: In, Out, ⅛” TRS Mini-Jack, MIDI Type A

Digital / Optical
ADAT IN: 8 channels at 44.1 and 48 kHz; S/MUX capable 4 channels at 96 kHz; S/MUX capable 2 channels at 192 kHz
S/PDIF IN: 2 channels at all supported sample rates

A/D – D/A Conversion
Supported Sample Rates (kHz): 44.1, 48, 88.2, 96, 176.4, 192
Bit Depth: 32

Power
USB Bus-Powered: Yes
Power Consumption (@ 5VDC): 4.2W typical, 5.8W maximum
On / Off Switch: Yes - Rear Panel

Analog I/O – Instrument Inputs 1-2
Frequency Response: 20 Hz to 20 kHz ±0.02 dB
Dynamic Range (A–weighted): 116 dB
THD + Noise (1 kHz @ -1 dBFS): -108 dB (0.0004%)
Maximum Input Level: 13 dBu
Input Impedance: 1 Megohms
Available Gain (Digitally-controlled): 60 dB
Connector Type: ¼” TS unbalanced

Analog I/O – Microphone Inputs 1-2
Frequency Response: 20 Hz to 20 kHz ±0.08 dB
Dynamic Range (A–weighted): 118 dB
THD + Noise (1 kHz @ -1 dBFS): -110 dB (0.0003%)
Maximum Input Level: 14 dBu
Input Impedance: 2 Kilohms
Available Gain (Digitally-controlled): 60 dB
Phantom Power: +48V (switchable per channel)
Connector Type: XLR Combo Jack, pin 2 positive

Analog I/O – Line Inputs 1-4
Frequency Response: 20 Hz to 20 kHz ±0.05 dB
Dynamic Range (A–weighted): 119 dB
THD + Noise (1 kHz @ -1 dBFS): -108 dB (0.0004%)
Maximum Input Level: 22 dBu
Input Impedance: 10 Kilohms
Available Gain (Digitally-controlled): 60 dB (channels 1 and 2 only)
Connector Type: ¼” Combo Jack, TRS balanced or TS unbalanced

Analog I/O – Monitor & Line 3-4 Outputs
Frequency Response: 20 Hz to 20 kHz ±0.05 dB
Dynamic Range (A–weighted): 126 dB
THD + Noise (1 kHz @ -1 dBFS): -112 dB (0.0003%)
Maximum Output Level: 20.2 dBu
Output Impedance: 200 Ohms
Connector Type: ¼” TRS balanced (DC coupled)

Analog I/O – Headphone Output
Frequency Response: 20 Hz to 20 kHz ±0.08 dB
Dynamic Range (A–weighted): 116 dB
THD + Noise (1 kHz @ -1 dBFS into 300Ω): -103 dB (0.0007%)
Maximum Output Power into 32Ω: 45 mW
Maximum Output Power into 300Ω: 24 mW
Connector Type: ¼” TRS stereo unbalanced (DC coupled)

System Requirements – macOS & Windows
USB Port: Available USB 2.0 (or higher) port
USB Cable: Included
Processor: Intel, AMD, or Apple silicon processor
Windows: Windows 10 64-bit edition or newer
macOS: macOS 12 Monterey or newer
Software Downloads: Internet connection required

System Requirements – iPad & iPhone
Operating System: iPadOS / iOS 16 or newer

DAW Compatibility
Supported DAWs: All major DAWs, including Ableton Live, FL Studio, GarageBand, Logic Pro, Pro Tools, and more