I'm really, really digging my SF Champ I just got from a TGP'er. It really does sound great very clean and slight breakup sounds okay. I'm not crazy about the breakup and harder stuff after about 6 on the volume, but it is "Rock n Roll" and pure power tube distortion I guess. My USA Reverend (and even my MIK Rev) sound stellar through this thing. The USA Rev is very unique (almost a hollowbody thinline) and it has this attack and "immediacy" to the sound through the champ that none of my other amps can even compare. Personally, I think it's a combination of the simple circuit/tubes and the 8" speaker? How can I extend the clean headroom on this -or- get the "next step up" with slightly more wattage? I have owned (and played) many a Blackface fender <Bandmaster, Bassman, Deluxe, Gries 5) but they all sound a little darker/duller than this pup. I feel like if I go too big (ie. Deluxe) I'll lose the beauty of what I hear in this extremely simple amp. Of course the issue than becomes cash... if Princeton's or PI's are the next step up we are moving from around $350 to around $650, correct? Any thoughts? Remember, I'm much more interested in the clean(er) side of this amp, not really the raunchy tweedy side.