Producer Rack

Checked September 2026

MOTU

MOTU M4 review

Audio interfaces

A 4-in, 4-out USB-C interface with ESS Sabre32 DAC and a color LCD meter. Best for producers needing extra line inputs and outputs. Price not published on the developer's site.

MOTU M4 by MOTU

Key features

  • 2 combo mic/line/Hi-Z inputs plus 2 line inputs
  • 4 balanced TRS outputs
  • 120 dB output dynamic range
  • 2.5 ms round-trip latency at 96 kHz
  • Loopback channels
  • MIDI in/out

Pros

  • Four outputs
  • Strong measured specs
  • Metal construction

Cons

  • Only two mic preamps

MOTU M4 alternatives

  • Universal Audio

    Universal Audio Volt 1

    PAID

    A 1-in, 2-out bus-powered USB interface with a Vintage Mic Preamp mode.

    VST3not supportedAUnot supportedAAXnot supportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported+ iOS
  • Universal Audio

    Universal Audio Volt 2

    PAID

    A 2-in, 2-out bus-powered USB interface with two Vintage Mic Preamp inputs.

    VST3not supportedAUnot supportedAAXnot supportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported+ iOS
  • PAID

    A 1-in, 2-out USB interface with Vintage Mic Preamp mode and a 76 Compressor.

    VST3not supportedAUnot supportedAAXnot supportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported+ iOS
All MOTU M4 alternatives

Sources: www.motu.com

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