I'm not too educated on the differences between the AC30 models. I guess there is an AC30 and an AC30cc? I'm assuming the "CC" has more options than the standard aC30, liek the channel jumpering/biasing, etc... Anyway,I played the AC30cc today at GC and I thought it sounded fantastic! Really good chimey clean with excellent breakup capability.The breakup at full tilt didn't sound harsh to me at all but very musical and pleasing. I didn't get a chance to play with the biasing switch and I didn't poke around to check out the speakers. The Tremolo was good but sounded a little 'soft' for lack of a better term when compared to my 65Twin.Not the mix level but the actual sound...not as much of a hard chop. Additionally the reverb for all it's control options did not out-class the Twin. Very dynamic sounding/responding amp. It seems like pretty much a one trick pony but what a trick! Anyone? *On another note..... I demoed the Marshall "Vintage/Modern" again and reaffirmed the fact that I don't like it.