RackSanity MPC Companion

Your Mac’s rack.On your MPC.

Browse instruments, shape sounds, and manage effects from one Companion instance. Your Mac hosts the plugins. Your MPC keeps the beat moving.

Preview · Release in preparation

Tested with MPC Live III on OS 3.10.0 and Universal RackSanity on Mac.

RackSanity Companion Perform screen with a full Cobalt panel, eight mapped knobs, rack volume and colored slot buttons
Companion interface preview · Example instrument names and values
One Companion instanceTouch + Q-LinkMac-hosted AU + VST3Native MPC MIDI tracksFull slot colors

Two devices. One session.

Build your rack on the Mac.
Play it from the MPC.

01 · HOST

Your sounds, on your Mac

Load the instruments and effects you already own in RackSanity. Give each instrument its own slot, MIDI channel, and output.

02 · CONTROL

A rack within reach

Select slots, browse sounds and instruments, adjust mapped parameters and slot volume, and add or bypass supported effects.

03 · RECORD

Keep your MPC workflow

Record and play parts on native MPC MIDI tracks. Capture the Mac’s USB audio returns on MPC audio tracks using your configured routing.

The Companion is a control surface. Plugins and audio processing run on the Mac. Slot selection in the Companion does not select, create, route, or arm native MPC tracks.

Made for playing

Same slot.
Same color. Same sound.

  • Eight mapped performance controls, plus rack volume.
  • Mac and MPC values follow changes in either direction.
  • Favorites appear first in instrument and effect lists.
  • The full panel follows the selected Mac slot’s finish.
  • Open and close the plugin editor on your Mac.
  • Live Edit starts off when you connect or restore a project.
The Companion interface with a full Crimson panel and live control labels
Crimson finish · Interface preview, not an MPC hardware photograph

Installer + setup

Get the host.
Pair your MPC.

The custom Mac installer includes the RackSanity host, a separate MPC Companion package, and a setup guide. Guided pairing lets you choose your Mac’s address without editing a configuration file.

  • Universal Mac host for Apple silicon and Intel.
  • Companion package for the tested MPC Live III setup.
  • Ordinary Mac app launch after you enable Companion.
  • Your installed instruments, effects and licenses stay on the Mac.

MPC installation is a separate step using the community Plugin Manager. The Mac installer does not update MPC firmware or install a plugin onto the device automatically.

RackSanity + MPC Companion

Download opens at release.

The installer is being prepared for customer release. Read the setup guide now to see what you’ll need.

Mac host
Apple silicon + Intel · AU + VST3
MPC tested
Live III · OS 3.10.0
Connection
Trusted local network for control; configured USB MIDI/audio paths

Other MPC models and OS versions have not been validated.

Read the complete setup guide →

Before you start

A few things to know.

Do my Mac plugins run inside the MPC?

No. RackSanity runs your AU and VST3 instruments and effects on the Mac. The Companion controls that rack from the MPC.

Can one Companion control multiple instruments?

Yes. One instance can select and control RackSanity slots. Keep independent instrument parts on native MPC MIDI tracks with their own channel assignments.

Will my MPC project reopen the correct Mac rack?

Save the Mac rack and MPC project separately. Load the saved rack on the Mac before connecting. Automatic project-to-rack linking is not included in this preview.

How does recording work?

Use native MPC MIDI tracks for notes and playback. For audio recording, configure the Mac and MPC USB audio path and record the return onto an MPC audio track. The Companion itself does not transmit audio or MIDI notes.

Do I need to edit the IP address in a file?

Guided setup lists your Mac’s current addresses and saves pairing to the installed Companion folder while the MPC storage is mounted in Controller Mode. If the Mac’s address changes, repeat that step.