Actually there are 2 channel JCM 800s and the clean channels on them are pretty decent especially if you roll back the volume.
Originally posted by shred_90
The only Marshalls that DONT have good clean channels in my opinion are the JCM 900's, the JCM 800's and the MGs/some of the AVT's. The 800s/900 dont have cleans channels anyway, so that disqualifies them. The best comes from the DSL/TSL's though, as jamie pointe dout. I ahve one, and along with a couple of Fender (Twin Reverb/Vibrolux) amps, and the Vox AC30, it has one of the greatest clean channels in an amp ever.