htpauna

Thanks for the replies! It's a shame that Mesa and Helix don't work together well. I too hope that they will eventually come up with a patch/other solution to fix this issue. For the time being, I'll use the Mesa's own footswitch and try out the Helix switching with my 50W ENGL Thunder.

It has been quite some time since you last posted regarding this issue, but I'd like to ask: did find a solution for the channel switching? I have the exact same issue with my Mesa Triple Rectifier and Helix LT. My Mesa's default channgel is Ch2, so I've connected my TRS cable to Ch1 and Ch3. Scenarios I've come up with (the connections I list are the only ones that are plugged in): EXT AMP (Helix) to Ch1 and Ch3 (Mesa) with a TRS: switching works like a dream, no problems. EXT AMP (Helix) to Ch1 and Ch3 (Mesa) AND guitar to the Mesa input with regular instrument cable: switching works like a dream, no problems. EXT AMP (Helix) to Ch1 and Ch3 (Mesa) AND guitar to the Helix input AND Helix mono out to Mesa input: when switching, channels don't change (at least the col. EXT AMP (Helix) to Ch1 and Ch3 (Mesa) AND guitar to the Mesa input with regular instrument cable AND Helix FX loop connected to Mesa FX loop: when switching, nothing happens. Btw, 4 cable method does not work; same buzzing and multiple channels on. So, all in all, I can only use the Helix to change the channels but not use any effects, or I can only use the Helix as effects and have Mesa's own footswitch. This is getting more and more frustrating, since I got these both couple of weeks ago and neither were cheap to begin with...