Motu M64

Key Information About the MOTU M64 USB 2.0 AVB Interface

• Up to 256 inputs and outputs to manage very large MADI configurations from a compact format.
• Integrated DSP monitoring and mixing to create headphone mixes and submixes directly within the interface, without overloading the computer.
• Studio-quality audio at 24-bit and up to 192 kHz, designed for recording, post-production, and broadcasting.
• Two analog outputs for immediate control (nearfield monitoring, backup output, or reference listening).

A Compact MADI Gateway in the MOTU Ecosystem (USB and AVB)

The MOTU M64 is designed as a "hub" interface for environments where MADI is central to the setup. Its approach is clear: to offer a very large capacity of digital inputs and outputs via MADI, while maintaining a half-rack format that is easy to integrate on a desk, in a lightweight rack, or a mobile control room. With its USB and AVB-oriented connectivity, it targets modern setups that need to connect a range of digital I/O to a computer, while preserving an audio network logic and flexible routing.

Intended Uses for the MOTU M64

This MADI audio interface is aimed at studios and engineers working with MADI-format converters, preamps, or stageboxes, who want to centralize a large number of channels in a compact solution. It is also relevant for live sound, broadcast, or installations whenever there is a need to transport a lot of audio over few cables, maintain clear signal flow organization, and secure monitoring.

Thanks to its two analog outputs, the M64 can also serve as a convenient listening point to check a mix, control a foldback, or provide a dedicated analog output without adding external equipment. Its positioning is therefore ideal for environments where most I/O is digital, while retaining an immediately usable analog output.

DSP, Hardware Monitoring, and Managing Large Volumes of I/O

DSP Mixing and Monitoring Without Software Dependency

The onboard DSP engine and DSP Hardware Monitoring allow monitoring directly at the interface level. Practically, you can build headphone mixes and manage listening without routing the signal through the session, which improves tracking comfort and reliability during production. This is a significant advantage when channel counts increase or when stable monitoring is required in recording, capture, or control room contexts.

Up to 256 Channels for Ambitious MADI Systems

With up to 256 inputs and outputs, the MOTU M64 is designed for extended configurations: conversion racks, multichannel preamps, stage systems, or sets of digital devices. This capacity enables building scalable architectures, maintaining a single interface on the computer side and clear distribution on the MADI side. In practice, this simplifies managing heavy sessions, multichannel post-production, or deployments where audio density is critical.

24-bit Resolution and Up to 192 kHz Sampling Rate

The M64 supports 24-bit resolution and a sampling rate up to 192 kHz, meeting the demands of current studio workflows. This level of definition is useful both for detailed recording and for environments where high precision on transients and dynamics is desired, while keeping simple integration within a MADI digital chain.

Compatibility and Workstation Integration

Equipped with a USB 2.0 port, the interface is announced as compatible with the audio standard and USB 3.0 compatible (operating on USB 3.0 hosts), as well as iOS compatible depending on the configuration. This versatility facilitates integration into varied environments, from fixed studios to mobile setups, maintaining a logic of direct and reliable connection.

Technical specifications