I did trawl through Knowledge base but could not get an answer to this.
Just about to buy an M9 but not certain how the 4CM applies. 4CM is used to split FXs pre and post pre-amp. I know how to plug the guitar into the M9 and the FX loop arrangement between M9 and the amp's send and return, , but nowhere have I been able to find the answer to where that fourth cable (which goes to the amp's input) inserts into the M9. The only one it can be is the remaining left output, and that means you can't run the 4CM in stereo - am I right?
Very grateful if anyone can help here, and has anyone used this to configure a Flex pedal for use as a wah wah so that its signal goes to the amp input direct, while mod FX go to send/return?