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#+title: Allen & Heath CQ-20B

based on MIDI Protocol V1.2 Issue 2

[[file:img/CQ-20B.png]]

The CQ uses MIDI Channel 1 for all control messaging.

* Available Controls
** Scene change
** Soft Keys
** Mutes
** Levels
** Panning/Balance
** Getting values
* Reference Tables

** Decimal, HEX, Note conversions

[[file:img/cq_ref_1.png]]

** Soft Key Note and Hex values

[[file:img/cq_ref_2.png]]

** Mutes Parameter Numbers

[[file:img/cq_ref_3.png]]

** Level Parameter Numbers — Inputs and FX to Outputs and FX

[[file:img/cq_ref_4.png]]

** Level Parameter Numbers — Outputs, FX unit input and DCAs

[[file:img/cq_ref_5.png]]

** Pan Balance Parameter Numbers — Inputs and FX to Main LR and Outputs

[[file:img/cq_ref_6.png]]

* Further
- CQ  MIDI Protocol