Not sure what I'm doing wrong here, but just came back to the Stadium, and added a stereo cab block, with one speaker left and another right.
Sounds great with one speaker, but as soon as I add the second, it turns into a fizzy, farty mess. Seems to happen no matter which speaker or mic is selected. Sounds like the second speaker is bypassed.
Anyone else come across this? I normally use IRs, but wanted to try the built-in cabs.