Universal Audio Volt 4 Max USB Audio Interface

Bring professional studio sound to your desktop with the Universal Audio Volt 4 Max USB Audio Interface, a next-generation recording solution built for musicians, producers, and creators. Combining Universal Audio’s renowned studio expertise with an intuitive workflow, Volt 4 Max delivers rich, polished sound and an inspiring recording experience for bringing ideas to life.

Features 

• 12-in / 6-out desktop USB audio interface with professional 32-bit / 192 kHz audio conversion delivers 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.
  
• Max Processing provides onboard real-time compression with six musical presets for vocals, guitars, and bass, modeled on classic compressors including the LA-2A and 1176.
  
• Over 18 completely noise-free character combinations are available by pairing Tone Shaping with Max Processing.
  
• Two mic / line inputs, two front-panel Hi-Z instrument inputs, and additional line I/O support flexible recording and external gear connections.
  
• Speaker switching between Main and Alt monitor sets provides convenient control for comparing two pairs of studio monitors.
  
• Built-in talkback microphone provides effortless communication during recording sessions.
  
• ADAT or S/PDIF optical input provides up to eight channels of digital expansion, while MIDI In and Out support external MIDI equipment.
  
• Onboard USB hub connects peripherals and provides power for external MIDI controllers.
  
• Full-color Smart Display provides bright, at-a-glance visual feedback including gain-reduction metering.
  
• Auto-Gain and Clip Protection help maintain optimal recording levels and prevent unwanted signal peaks.
  
• Two studio-quality headphone outputs with one shared cue mix support monitoring and collaborative recording sessions.
  
• 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 recording setups.
  
• USB bus-powered and class-compliant design enables easy setup with Mac, Windows, iPad, and iPhone.
  
• Stylish, rugged construction provides reliable durability for studio and mobile recording.
  
• 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, Harmonic Saturation, and Max Compression
Monitor Outputs: Two stereo (main and alt speaker switching)
Headphone Outputs: Two stereo (one shared 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 @ 1.5A minimum (3A provided with unit); USB Type-C connectors
Digital / Optical: ADAT or S/PDIF optical input
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
MIDI: In, Out, ⅛” TRS Mini-Jack, MIDI Type A
Talkback: Built-in microphone

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): 5.5W typical, 7.1W 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): 119 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 1-2
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
Connector Type: ¼” Combo Jack, TRS balanced or TS unbalanced

Analog I/O – Line Inputs 3-4
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
Connector Type: ¼” 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 or TS unbalanced (DC coupled)

Analog I/O – Headphone Outputs
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” and ⅛” 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