The Universal Audio UA-VOLT-4-MAX-U Volt 4 Max is a professional 12-in/6-out USB audio interface designed to provide detailed recording performance with the rich character associated with Universal Audio. Its two microphone preamps offer up to 60 dB of digitally controlled gain with Tone Shaping, Harmonic Saturation, and Max Compression. Classic compressor presets tuned for vocals, guitar, and bass provide convenient processing options for capturing polished performances.

Expanded I/O & Flexible Studio Connectivity

The Volt 4 Max provides two microphone inputs, two instrument inputs, four line inputs, two stereo monitor outputs, and two stereo headphone outputs with a shared cue mix. Its main and alternate monitor outputs support convenient speaker switching for studio monitoring, while ADAT or S/PDIF optical input allows additional digital sources and channels to be connected. MIDI In/Out provides connectivity for external keyboards, controllers, and hardware, while the integrated USB hub offers an additional connection for compatible peripherals.

Smart Workflow & Professional Recording Features

Full 32-bit audio conversion and support for sample rates up to 192 kHz allow the Volt 4 Max to capture recordings with high detail and clarity. The Smart Display provides bright visual feedback for quick channel selection and level adjustment, while Auto-Gain and Clip Protection help simplify recording and reduce the risk of unwanted signal peaks. A built-in talkback microphone supports communication during sessions, and USB connectivity provides a convenient computer-based recording workflow. Premium UAD software and the LUNA DAW are included for music production, recording, mixing, podcasting, streaming, and content creation.

Product Specifications:

Product Type: USB Audio Interface

Interface Type: USB 2.0 Audio Interface

Form Factor: Desktop

Simultaneous I/O: 12-In / 6-Out

A/D Conversion: 32-Bit

D/A Conversion: 32-Bit

Bit Depth: 32-Bit

Supported Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz

Microphone Preamps: 2

Microphone Preamp Gain: 60 dB

Preamp Features: Tone Shaping, Harmonic Saturation & Max Compression

Compressor Presets: Vocal, Guitar & Bass

Instrument Inputs: 2

Line Inputs: 4

Monitor Outputs: 2 Stereo

Monitor Configuration: Main and Alt Speaker Switching

Headphone Outputs: 2 Stereo

Cue Mix: 1 Shared Cue Mix

Talkback: Built-In Microphone

USB Host Port: 1 USB 2.0

USB Hub Port: 1

USB Hub Power: 5VDC @ 0.5A Maximum

USB External Power Input: 5VDC @ 1.5A Minimum

Included External Power Supply: 3A

USB Connector Type: USB Type-C

Digital/Optical Input: ADAT or S/PDIF Optical

ADAT Input: 8 Channels at 44.1/48 kHz

ADAT Input at 96 kHz: 4 Channels via S/MUX

ADAT Input at 192 kHz: 2 Channels via S/MUX

S/PDIF Input: 2 Channels at All Supported Sample Rates

MIDI Connectivity: MIDI In/Out

MIDI Connector: 1/8″ TRS Mini-Jack

MIDI Type: Type A

USB Bus-Powered: Yes

Power Consumption: 5.5W Typical / 7.1W Maximum

On/Off Switch: Yes

On/Off Switch Location: Rear Panel

Phantom Power: +48V Switchable per Channel

Instrument Input Connector: 1/4″ TS Unbalanced

Instrument Input Frequency Response: 20 Hz20 kHz 0.02 dB

Instrument Input Dynamic Range: 116 dB A-Weighted

Instrument Input THD + Noise: -108 dB (0.0004%)

Instrument Maximum Input Level: 13 dBu

Instrument Input Impedance: 1 M

Instrument Available Gain: 60 dB

Microphone Input Connector: XLR Combo Jack, Pin 2 Positive

Microphone Input Frequency Response: 20 Hz20 kHz 0.08 dB

Microphone Input Dynamic Range: 119 dB A-Weighted

Microphone Input THD + Noise: -110 dB (0.0003%)

Microphone Maximum Input Level: 14 dBu

Microphone Input Impedance: 2 k

Microphone Available Gain: 60 dB

Line Inputs 1-2 Connector: 1/4″ Combo Jack, TRS Balanced / TS Unbalanced

Line Inputs 1-2 Frequency Response: 20 Hz20 kHz 0.05 dB

Line Inputs 1-2 Dynamic Range: 119 dB A-Weighted

Line Inputs 1-2 THD + Noise: -108 dB (0.0004%)

Line Inputs 1-2 Maximum Input Level: 22 dBu

Line Inputs 1-2 Input Impedance: 10 k

Line Inputs 1-2 Available Gain: 60 dB

Line Inputs 3-4 Connector: 1/4″ TRS Balanced / TS Unbalanced

Line Inputs 3-4 Frequency Response: 20 Hz20 kHz 0.05 dB

Line Inputs 3-4 Dynamic Range: 119 dB A-Weighted

Line Inputs 3-4 THD + Noise: -108 dB (0.0004%)

Line Inputs 3-4 Maximum Input Level: 22 dBu

Line Inputs 3-4 Input Impedance: 10 k

Line Inputs 3-4 Available Gain: 60 dB

Monitor & Line 3-4 Output Connector: 1/4″ TRS Balanced / TS Unbalanced, DC Coupled

Monitor & Line 3-4 Output Frequency Response: 20 Hz20 kHz 0.05 dB

Monitor & Line 3-4 Output Dynamic Range: 126 dB A-Weighted

Monitor & Line 3-4 Output THD + Noise: -112 dB (0.0003%)

Monitor & Line 3-4 Maximum Output Level: 20.2 dBu

Monitor & Line 3-4 Output Impedance: 200

Headphone Output Connectors: 1/4″ and 1/8″ TRS Stereo Unbalanced, DC Coupled

Headphone Frequency Response: 20 Hz20 kHz 0.08 dB

Headphone Dynamic Range: 116 dB A-Weighted

Headphone THD + Noise: -103 dB (0.0007%)

Headphone Maximum Output Power at 32 : 45 mW

Headphone Maximum Output Power at 300 : 24 mW

Smart Display: Yes

Auto-Gain: Yes

Clip Protection: Yes

Tone Shaping: Yes

Harmonic Saturation: Yes

Max Compression: Yes

Talkback Microphone: Built-In

Main Monitor Switching: Yes

Alternate Monitor Switching: Yes

Loopback: Supported for Streaming and Content Creation

UAD Software: Included

LUNA DAW: Included

Application: Music Recording, Production, Mixing, Podcasting, Streaming & Content Creation

Mobile Recording: Supported

Shipping Weight: 3 lbs

Shipping Dimensions: 4.7″ H 5.7″ W 9.3″ L