Bring studio-quality recording into your setup with the UAD Volt 4 Max USB Audio Interface. Connect microphones and instruments to capture vocals, instruments, podcasts, and other audio directly to your computer. Its four-input format offers room for multi-source sessions, while USB connectivity keeps your recording setup streamlined. A versatile choice for home studios, creators, and musicians building a flexible recording workflow.
- Tone Shaping Preamps. Get the rich, full character of a record, not a demo.
- Max Processing. Record with classic compressor presets tuned for vocals, guitar, and bass.
- Full 32-Bit Audio. Capture your performance in incredible detail, with legendary UA quality.
- Expanded I/O. Capture your vocals and instruments simultaneously, connect external hardware over MIDI, and add inputs over ADAT.
- Smart Display. Select channels and set levels fast, with bright visual feedback.
- Auto-Gain & Clip Protection. Never worry about signal peaks ruining your take again.
- Easy to Use. Quickly connect and record using your favorite music apps.
- Premium UAD Software. Get the same EQs, compressors, synths, and guitar amps used by the pros, plus the award-winning LUNA DAW.
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
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
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
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
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)
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
Available USB 2.0 (or higher) port
USB cable (included)
Intel, AMD, or Apple silicon processor
Windows 10 64-bit edition or newer
macOS 12 Monterey or newer
Internet connection for software downloads
iPad & iPhone
iPadOS / iOS 16 or newer
DAW Compatibility
All major DAWs, including Ableton Live, FL Studio, GarageBand, Logic Pro, Pro Tools, and more
