Universal Audio Volt 4 Max

The Universal Audio Volt 4 Max brings compression and monitor control within reach

The Universal Audio Volt 4 Max combines a USB-C audio interface with practical control over recording sound and monitoring. The two Tone Shaping preamps deliver 60 dB of gain and offer Warmth, Focus, and Shine for various harmonic tones. With Max Processing, you can add real-time compression during recording: six presets for vocals, guitar, bass, and more are inspired by classic 1176, LA-2A, and VCA compressors. The color display shows levels, settings, and gain reduction. Auto-Gain and Clip Protection help keep your signal under control. The Main/Alt monitor switch and built-in talkback microphone make collaboration easier, while two headphone connections share the same cue mix. With optical expansion, MIDI, loopback, and integration with UAD Console and LUNA, the Volt 4 Max is a versatile hub for a compact recording studio.

Connections and recording features

The interface offers up to 12 inputs and 6 outputs, including digital expansion, with 32-bit/192 kHz conversion. Two XLR/TRS microphone/line inputs, two front Hi-Z instrument connections, and two additional TRS line inputs provide room for various sources. The instrument connections share the first two recording channels. Four analog outputs control Main and Alt monitor sets, among others. The 6.35 mm and 3.5 mm headphone outputs share a single stereo cue mix. Individually switchable 48 V phantom power, direct monitoring, and loopback are included. The optical TOSLINK input uses either ADAT or S/PDIF. ADAT supports eight channels at 44.1/48 kHz, four at 88.2/96 kHz, and two at 176.4/192 kHz; S/PDIF offers two channels. MIDI In and Out use 3.5 mm TRS Type A. The USB-C HOST connection operates according to USB 2.0, alongside a USB-C hub port for peripherals up to 5 V/0.5 A and a separate 5 V USB-C power input.

Power and delivery

A one-meter USB-C to USB-C cable and an external power supply with an AC adapter set are included. The external power input requires 5 V at a minimum of 1.5 A; UA includes a 3 A power supply. USB bus power is also possible when the host can provide sufficient power. The device alone weighs approximately 0.6 kg; UA lists approximately 1.4 kg for shipping, including the box and accessories.

Software and compatibility

After registration via UA Connect, you get access to the UAD Volt Studio Bundle and LUNA, including Topline Vocal Tune, UA 610 Tube Preamp & EQ Collection, Century Tube Channel Strip, Teletronix LA-2A, UA 1176, Pure Plate Reverb, Galaxy Tape Echo, Oxide Tape Recorder, Vibe Analog Machines, PolyMAX, Anthem, UAD Lion '68, and Showtime '64. The partner bundle includes Melodyne Essential, Ampeg SVT-VR Classic Bass Bundle, UJAM Virtual Drummer DEEP and Virtual Bassist DANDY, Splice INSTRUMENT, and UVI Prisma, plus three months of FL Studio Producer Edition. Contents and terms are subject to change; registration and internet access are required for downloads. The included software is for compatible Mac and Windows systems, not for iOS or Android. Windows uses the Volt ASIO driver from UA Connect. The hardware also works with compatible iPad and iPhone setups; required adapters and sufficient power depend on the device.

Official Universal Audio product information and full hardware manual and technical specifications.