Ensure the power switch on the back of the Axiom is set to the "USB" position (or "On" if using an external power supply).
Yes and no. The Axiom 25 can run on USB bus power for MIDI data, but if you use the backlit LCD and high-output pads, you need the 9V DC adapter (center positive). Low voltage causes driver disconnections.
Installing legacy audio drivers on a modern Mac requires bypassing Apple’s security. Follow this exactly. m audio axiom 25 driver download mac top
To locate legacy configuration files and profiles for your controller, use the official manufacturer channels. Documentation, driver and software downloads - M-Audio
Select your specific model (e.g., ) from the second dropdown. Choose your macOS version . Ensure the power switch on the back of
M-Audio Axiom 25 is a legacy MIDI controller that is class-compliant
The is a legacy MIDI controller (released circa 2006-2009). For modern macOS versions (Catalina 10.15 and later, including Apple Silicon), official drivers no longer exist . The device is class-compliant for basic MIDI functions, but advanced features (DirectLink, pad/knob mapping, firmware updates) are unsupported. Low voltage causes driver disconnections
Verify that your Mac's Core MIDI system is receiving communication via the built-in MIDI Studio: