12-in / 6-out desktop USB audio interface with professional 32-bit / 192 kHz audio conversion
Four Tone Shaping Preamps with 60 dB gain and three harmonic character modes — Warmth, Focus, and Shine — for the rich sounds of classic analog mic preamps at the source
Four mic / line inputs for tracking up to four sources at once
Max Processing — onboard realtime compression with six musical presets for vocals, guitars, and bass, modeled on classics like the LA-2A and 1176
Over 18 character combinations by pairing Tone and Max, all completely noise-free
Two front-panel Hi-Z instrument inputs and additional line outputs
Speaker switching between two sets of monitors (Main and Alt)
Built-in talkback microphone for effortless studio communication
ADAT or S/PDIF optical input for up to eight channels of digital expansion, plus MIDI In and Out
Onboard USB hub for connecting peripherals and powering external MIDI controllers
Full-color Smart Display for bright, at-a-glance visual feedback, including gain-reduction metering
Auto-Gain and Clip Protection for perfect recording levels, every time
Two studio-quality headphone outputs (with one shared cue mix) for monitoring and collaboration
Full integration with the UAD Console app and LUNA, including session recall and low-latency cue mixes
Built-in loopback for podcasting, streaming and content creation
Independent 48V phantom power per channel for condenser microphones
USB bus-powered and class-compliant for easy setup with Mac, Windows, iPad, and iPhone*
Stylish, rugged construction built to withstand years of use
Access to exclusive Puremix audio education content
12-In / 6-Out
Tone-Shaping Preamps
Max Processing
Full 32-Bit Audio
Premium UAD Software
Speaker Switching
Built-In Talkback Mic
Easy to Use
Studio Sound for the Full Band, at the Push of a Button
Home recordings and phone demos can sound thin and lifeless. Volt Max gives your recordings incredible tone right from the start. With three harmonic mic preamp modes — Warmth, Focus, and Shine — you can quickly add Tube, Solid State, and British Class-A tone to everything you record.
Add Punch with Max Processing
Volt Max lets you punch up your vocals, guitars, bass, and drums as you track, thanks to Max dynamics processing. With six push-button presets ranging from “Rap Vocals” to “Jangly Acoustic,” you’ll get big, radio-ready sounds based on our venerable 1176 and LA-2A studio compressors. Combined with its three preamp modes, it puts 18 inspiring sonic possibilities right at your fingertips.
Hear Every Detail with 32-Bit Converters
When you capture that perfect take, Volt Max’s best-in-class 32-bit / 192 kHz converters preserve every detail, exactly as it happened. And with loud, clear speaker and headphone outputs, you’ll get the perfect monitoring levels, from your first take to your final mix.
Capture Everything with Expanded I/O
The flagship Volt 4P Max gives you more of everything. It starts with four Tone Shaping Preamps to record multiple musicians and instruments at the same time. Tap into clean 48V phantom power for your fancy studio condenser mics. Connect your controllers and synths over MIDI. And with ADAT you can add eight more digital inputs, should the need arise.
See the Big Picture with Smart Display
Volt Max’s beautiful full-color Smart Display shows your inputs, levels, and settings in detail. So you spend less time setting up and more time creating.
Get the Perfect Levels with Auto-Gain
Nothing’s worse than a perfect take wrecked by digital distortion. Auto-Gain sets your recording levels in seconds, and Clip Protection catches unexpected peaks. So you can focus on the performance instead of the meters.
Start Making Music in Minutes
When you’re inspired, every second counts. Thankfully, Volt Max is ready, willing, and USB class-compliant on Mac, Windows, iPad, and iPhone.* No downloads or drivers. Works with any DAW. So you can be up and recording in minutes.
Shape Your Songs with UAD Plug-Ins and LUNA
Every Volt includes over 15 UAD plug-ins and instruments — the same software used to create and mix countless hit records for decades. Plus you get LUNA, our award-winning DAW with authentic “big studio” sound and smart tools designed to make recording easy.
Ideal for Larger Podcasts and Livestreams
Volt Max’s Loopback feature allows you to blend live sources with computer audio. So you can mix multi-guest podcasts and livestreams in realtime. Or just level up your video calls. There’s even a Talkback mic to communicate with talent. It’s the same way pro broadcasters work, built into every Volt.
*Requires an Apple Lightning to USB Camera Adapter (except iPhone / iPads with USB-C). Windows systems use the ASIO driver, available in the UA Connect app. Requirements for bus-power vary by model and device.
Specifications
I/O
Simultaneous I/O
12-in / 6-out
Microphone Preamps
Four, 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 @ 2A 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, 1/8" 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)
6.0W typical, 9.1W maximum
On / Off Switch
Yes - Rear Panel
Analog I/O
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
1/4" TS unbalanced
Frequency Response
20 Hz to 20 kHz ±0.08 dB
Dynamic Range (A–weighted)
119 dB
THD + Noise (1 kHz @ -1 dBFS)
-108 dB (0.0004%)
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
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
1/4" Combo Jack
TRS balanced or TS unbalanced
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
1/4" TRS balanced or TS unbalanced
(DC coupled)
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
1/4" and 1/8" 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
Yes, the Volt 4P Max is worth it if you need to record a full band, a drum kit, or a group of voices with classic studio character. It's the flagship Volt, with four Tone Shaping Preamps, Max Processing based on the 1176 and LA-2A, speaker switching, talkback, and two headphone outputs. With ADAT expansion, MIDI, and 32-bit / 192 kHz conversion, it's a complete multi-mic studio in a desktop USB interface.
Volt 4P Max gives all four of its mic inputs classic UA preamp tone, then adds onboard compression and control-room features to the same compact unit. Most four-preamp USB interfaces are built for clean capture only, while Volt 4P Max lets you add tube, solid state, or British Class-A character and radio-ready compression as you track. Speaker switching, talkback, and dual headphone outputs make it ready for real band sessions.
Yes, the Volt 4P Max records up to four mics at once through its Tone Shaping Preamps, enough for a compact drum setup or a live band take. A common drum approach uses kick, snare, and a stereo overhead pair, and the ADAT optical input adds up to eight more channels when you want more mics on the kit or the rest of the band. Each preamp offers 60 dB of digitally-controlled gain and independent 48V phantom power, so dynamic and condenser mics can share the session without worry.
Volt 4P Max takes over from the Volt 476P as the four-preamp Volt, and it adds Tone Shaping to all four preamps along with six Max Processing presets based on 1176, LA-2A, and VCA compressor types. It also moves up to 32-bit / 192 kHz conversion and a full-color Smart Display with Auto-Gain and Clip Protection. It also adds speaker switching, talkback, and ADAT or S/PDIF input, and a USB hub. If your 476P has been the heart of your band recordings, Volt 4P Max is a big step up in tone and control.
Choose the Volt 4P Max if you need four mic preamps, and the Volt 4 Max if two mic preamps plus two line inputs cover your setup. Both share Max Processing, speaker switching, talkback, two headphone outputs, ADAT, MIDI, and 12-in / 6-out I/O. The Volt 4P Max turns all four analog inputs into Tone Shaping Preamp mic / line inputs, which is what drummers, bands, and multi-host podcasts need.
Max Processing on the Volt 4P Max is onboard realtime compression with six push-button presets tuned for vocals, guitars, bass, and drums. The presets are based on UA's 1176, LA-2A, and VCA studio compressors, ranging from "Rap Vocals" to "Jangly Acoustic," and the Smart Display shows gain reduction as you record. Paired with the three Tone Shaping Preamp modes, that gives you over 18 character combinations for every source in the room.
The Volt 4P Max's Focus mode is a natural starting point for drums, with the punchy, controlled sound of a famous American solid state console. Shine, drawn from classic British Class-A circuitry, adds open, airy top end to overheads and cymbals, while Warmth, inspired by the UA 610 tube preamp, gives body to kick, toms, or room mics. Because each of the four preamps has its own mode, you can mix and match across the kit.
The Volt 4P Max records and plays back at up to 32-bit / 192 kHz, with 119 dB of A-weighted dynamic range on all four mic inputs and 126 dB on the monitor and line outputs. Every mic input is the same Tone Shaping Preamp design, so channel 4 sounds as good as channel 1. Balanced ¼" monitor and line outputs keep your speaker feeds quiet on both the Main and Alt pairs.
The Smart Display on the Volt 4P Max shows inputs, levels, settings, and gain reduction in full color, and Auto-Gain sets your recording levels in seconds. Clip Protection catches unexpected peaks, which matters when drummers and singers get louder than they did at soundcheck. With four mics running, seeing every channel on the unit makes setup much faster.
Yes, the Volt 4P Max has Main and Alt speaker switching for two sets of studio monitors, plus a built-in talkback microphone. Speaker switching lets you check mixes on a second pair of monitors at the push of a button, and talkback lets you talk to the band between takes without extra hardware. Two headphone outputs (one ¼" and one ⅛") share a cue mix for you and a performer.
The Volt 4P Max includes a power supply, and it's the recommended way to run four preamps with phantom power at full capability. It draws 6.0W in typical use and 9.1W at maximum, and its external USB power input takes 5VDC at 2A minimum, with a 3A supply included in the box. USB bus power is supported when your host port supplies enough current, and requirements vary by device.
Yes, the Volt 4P Max works with macOS 12 Monterey or newer, Windows 10 64-bit or newer, and iPadOS or iOS 16 or newer, on Intel, AMD, and Apple silicon. It's class-compliant on Mac, iPad, and iPhone, and on Windows it uses the UA ASIO driver from the UA Connect app. It works with all major DAWs and is fully integrated with the UAD Console app and LUNA, including session recall and low-latency cue mixes.
Yes, the Volt 4P Max adds up to eight more channels through its ADAT optical input, taking you from four mic inputs to as many as twelve. Connect an ADAT-equipped mic preamp for a fully mic'd drum kit or a larger band session. ADAT runs eight channels at 44.1 and 48 kHz, four at 96 kHz, and two at 192 kHz using S/MUX, and the optical input can also accept two-channel S/PDIF.
Yes, the Volt 4P Max has MIDI In and Out on ⅛" TRS Type A jacks, plus an onboard USB hub port. MIDI connects keyboards, synths, drum machines, and electronic drum modules, and the USB hub connects peripherals and powers a USB MIDI controller at up to 0.5A. That keeps your computer's USB ports free and your desk cleaner.
No, the Volt 4P Max uses UAD Native plug-ins, which run on your computer's processor instead of dedicated DSP hardware. Its Max Processing and Tone Shaping Preamps happen on the interface itself, so every channel gets classic tone while tracking without taxing your computer. If you later want to track through the full UAD plug-in library with Unison™ preamp modeling, UA's Apollo interfaces add onboard DSP for that workflow.
The Volt 4P Max includes the UAD Volt Studio Bundle, which pairs the LUNA DAW with UAD plug-ins and instruments used on countless hit records. For band sessions, you get the Teletronix LA-2A and UA 1176 compressors, the UA 610 Tube Preamp & EQ Collection, Century Tube Channel Strip, Pure Plate Reverb, Oxide Tape Recorder, and the UAD Lion '68 and Showtime '64 guitar amps, plus the PolyMAX and Anthem synths. Additional instruments and production tools from partner developers are included too, and bundle contents are subject to change.
Yes, the Volt 4P Max is a great interface for podcasts with up to four people in the room, since each voice gets its own mic, preamp, and track. Tone Shaping and Max Processing give every host a polished, broadcast-ready sound, and built-in loopback brings in remote guests, music, and sound effects. Talkback and two headphone outputs help the producer run the session smoothly.
For high-quality livestreaming, the Volt 4P Max gives you four mic inputs, built-in loopback, and onboard compression in one unit, so you only need to add mics, headphones, and your streaming software. Loopback blends up to four live voices or instruments with computer audio in realtime, which suits live music streams, panel shows, and co-hosted broadcasts. Max Processing keeps every voice even, and Clip Protection guards against sudden peaks on air.