Stick with a single channel JCM 800 with vertical inputs like my '82 had. Those sound better and they'll last forever. My '86 had side by side inputs and the circuit board is differant and the amp was not nearly so ballsy as my '82...regardless of what anyone tells you. The '86 cannot be easily modded to sound as good as the '82 either. Personally, I'd avoid the dual channel, channel switching model altogether. Simpler is better, IMO. Lew