Allen & Heath Qu · MIDI Message Generator

Build MIDI for A&H Qu mixers — scene recall & channel mutes as ready-to-send bytes. Send over USB-MIDI or MIDI-over-TCP.

Recall a scene

Bank Select then Program Change: Bn 00 bank + Cn pc. Scenes 1–128 = bank 0, 129–256 = bank 1, 257–300 = bank 2. The scene must exist on the Qu.

Mute a channel

NRPN mute: Bn 63 MSB · Bn 62 LSB · Bn 06 00 · Bn 26 <1|0>, where MSB/LSB is the channel's parameter number from the Qu MIDI reference tables.

Custom MIDI message

A generic MIDI message builder on the channel above. Values are 0–127. Handy for MIDI fader strips (CC) and soft-key notes.

This tool outputs MIDI, not OSC. Send the bytes over USB-MIDI (USB-C) or MIDI-over-TCP to the Qu's Network port (A&H uses TCP 51325). Set the mixer's MIDI channel in Utility → General → MIDI to match the channel above. Qu fader levels use a send-matrix (source → destination) — use the Custom tab with the reference tables for those; this tool covers scenes & mutes.
Generated MIDI
Hex
Decimal

Manual & examples

Copy any ready-made message below into your MIDI sender. Bytes are shown in hex, following Allen & Heath's Qu MIDI protocol (examples use MIDI channel 1).

STEP 1

Set the MIDI channel

On the Qu: Utility → General → MIDI. Note the MIDI channel and set it above so the parameter bytes match.

STEP 2

Build a message above

Pick a tab (Scene, Mute…), set the fields, and the panel on the right shows the MIDI bytes live.

STEP 3

Send the bytes

Send via USB-MIDI, or MIDI-over-TCP to the Qu's IP on port 51325.

Examples assume MIDI channel 1 (status nibble 0). Mute uses the Qu parameter tables — Input 1 = MSB 00 LSB 00, LR = 00 44, DCA 1 = 02 00, Mute Group 1 = 04 00.