: Reboot your Mac. Once restarted, the system will use its built-in Core Audio/MIDI drivers to identify the device automatically. 2. Verify in Audio MIDI Setup
The X Session Pro is a classic, rugged controller. But on modern Macs, "hot" means you are flying without a net. Turn down the input gain in Audio MIDI Setup, uninstall the broken M-Audio drivers, and let Apple's native USB audio handle the rest.
However, always exercise caution when updating to a brand-new macOS version. In the past, M-Audio has sometimes advised users to wait for full compatibility confirmation before updating to a major new OS release (as they did with Sequoia). While the core driver is built into macOS, other underlying factors can cause issues.
To confirm whether your Mac registers the hardware at a system level: M-Audio Xsession Pro - What To Know & Where To Buy m audio x session pro driver for mac hot
Close Preferences, click the button in the top right corner of Ableton, click a virtual knob, and turn the corresponding physical knob on the X-Session Pro to link them. Serato DJ Pro
Go to Window > Show MIDI Studio . You should see an icon for the "X-Session Pro." If it is highlighted, your Mac sees the device.
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Since there is no "driver installer," the setup process is entirely handled by your software (DAW or DJ software). 1. Physical Connection Plug the USB cable from the X-Session Pro into your Mac.
Open MIDI Studio (Applications/Utilities/Audio MIDI Setup). You should see "X Session Pro" listed as a MIDI port, not an audio device.
Note: You lose the specific "Mix" knob control panel, but the audio routing remains solid. Verify in Audio MIDI Setup The X Session
If a factory mapping doesn't load, you can click on any hardware key or knob visualizer on the screen and assign it manually using their intuitive custom mapping interface. Mixxx (Free & Open Source)
If your Mac's fans kick up instantly when connecting the device, open the native application and sort by % CPU . If coreaudiod or WindowServer is consuming over 80% of your processing power, your USB hub is likely dropping packets, forcing macOS to constantly retry the connection loop. Swapping to a direct USB-C to USB-B cable typically resolves this immediately.