my tube amp don’t have midi for change chanal. it have foot switch with trs cable.How to setup Quad Cortec can change amp chanal?
Currently this is not possible. I believe a feature request exists to allow the Capture Out to have additional functionality, but if it can do TRS switching like you’re suggesting I don’t know. The Helix has a dedicated jack for this, but the QC does not have this capability.
One solution is to get a RJM mastermind or similar to adapt your amp to MIDI channel switching etc.