I didn’t buy the XTC for the plexi mode and anyone who has the coin for one probably has the ability to build or buy a plexi type circuit for those tones if desired.
I disagree - the clean is similar to channel 2 discussed above. Crank on the presence and keep the treble low around 9 o clock or so. It’s very spanky and stays clean even with high output pickups. If you want discuss a cheap sounding clean channel for an expensive amp, let’s talk about herberts and their inability to have enough headroom to keep up with the lead channels.
I don’t even use channel 3 on my XTC anymore. I boost channel 2 with an SD-1 and use a parametric eq with a frown face and level shift in the loop for a solo boost. It’s killer sounding all around.
My only gripe is this damn footswitch and the problems you get connecting it. It wasn’t designed with aging in mind and does worry me taking it to band practices.