Can anybody tell me the differences between the latest gen Fender Supersonic? The 22 combo uses 3 12ax7 and 2 12at7 preamp tubes. The 60 combo uses 6 12ax7 and 2 12at7 preamp tubes. The 60 head uses 5 12ax7 and 1 12at7 preamp tubes. Is the 22 using a solidstate effects loop vs a tube buffered loop on the 60? Does the lack of reverb on the head account for the tube count difference vs the 60 combo?