Potential damage?
I left my Th30 with my singer so he could record guitars. I have a 16 ohm ppc112 with two inputs for daisy chaining. I left it plugged in how it was supposed to be. When I got back the next week, he had a cord in the 8 ohm and 16 ohm slots both plugged into the cab. Now my gain channel is way quieter than before. I never take it past 10 o'clock and now I have to take it to two o'clock to get the same volume. Do you think something happened with the mismatched inputs? I've done some research and it could maybe be the preamp tubes, but I just put new ones in about 6 months ago. Thanks for your help.