The MOTU M4 is a four-input, four-output USB-C audio interface that extends the acclaimed M-series platform with additional connectivity for musicians and producers who need more routing flexibility. It shares the same ESS Sabre32 Ultra DAC technology as the M2, delivering an exceptional 120 dB dynamic range on the outputs that provides reference-grade monitoring quality for critical listening and mixing. The front panel features two combination XLR/TRS inputs with high-quality preamps, plus two additional quarter-inch inputs for line-level sources such as synthesizers, drum machines, or the outputs of external preamps. The full-color LCD display provides real-time metering for all input and output channels, and the loopback feature enables flexible audio routing for streaming and podcast workflows. Four balanced outputs allow connection of two pairs of studio monitors or external processing gear, and the dual headphone outputs with independent volume controls are valuable for collaborative sessions. MIDI I/O on the rear panel connects hardware instruments and controllers. Build quality is solid with a sturdy metal enclosure and a clean, functional layout. This interface is ideal for electronic music producers, small studios, and content creators who need more than two inputs and flexible output routing without stepping up to a rack-mount unit. The additional inputs are line-level only, so users requiring more than two microphone inputs will need external preamps.

Audio Interfaces

A four-input interface extending the M-series with ESS Sabre32 DAC quality, dual headphone outputs, four balanced outputs, and additional line inputs for synthesizers and processors.