+1 for the Fender '57 Tweed Twin-Amp. That thing is pretty damn loud, and pretty clean due to the dual rectifiers and higher wattage than a tweed bandmaster or bassman. Great stock speakers in that amp too, a little stiff at first, but give it about a week or two and it will start to do some smokin blues. Because tweed amps were made in the 50s, when electric guitar was made to amplifiy the sound of an acoustic guitar, they were meant for clean of course. But, without saying, they have some of the best (if not the best IMO) distortion tones that you can get. You can jump the two channels with a Y cable to get a real ballsy clean sound for blues.
I would also reccomend a Victoria 80212 amp, which is the high powered tweed twin. This will give you A LOT of headroom, but because it is a tweed, you might still be able to crank it a bit to get a pushed blues tone. I never played this amp and dont know how it rates in loudness compared to ure other amp, but im guessing that the Victoria is much louder. Just 2 suggestions...
