This tutorial explains how to connect a Yamaha Reface CP synthesizer to a Native Instruments Komplete Kontrol A49 keyboard via MIDI.

The main challenge: The NI Komplete Kontrol A49 sends MIDI only via USB, while the Reface CP lacks USB host mode capability. This means a direct connection between A49 and Reface CP is impossible.

What you need

• Yamaha Reface CP compact synth
• NI Komplete Kontrol A49 MIDI keyboard
• Computer with USB or standalone USB-to-MIDI host device
• Optional: Digital Audio Workstation (DAW)

Important: MIDI Channel

The Reface CP’s MIDI input operates continuously on channel 1 by default. No menu configuration required for MIDI reception.

Connection Options

Option 1: Computer-based routing

Use MIDI routing software like MIDI-OX, MIDI Patchbay, or your DAW to route the MIDI signal from the A49 (via USB) to the Reface CP (via USB or MIDI out from your audio interface).

Option 2: Standalone USB MIDI Host

If you want to skip the computer, you need a standalone USB MIDI host device. I recommend the Digital Life Stand Alone Midi USB Host (approximately €56 on Amazon).

This device accepts the USB MIDI output from the A49 and converts it to standard 5-pin MIDI DIN, which you can plug directly into the Reface CP’s MIDI input.