RE: CLASSIC 30 Again ! SORRY !!

Ok so I have a Classic 30 and I am not sure about how good I like the Blue Marvel speaker or not. I'm mostly looking for that The Black Keys and Dan Auerbach bluesy tone using mostly single coils and p90 guitars. I am searching for a Fender Classic Princeton Reverb clean with just a good touch of grit. I mostly play blues. 

THX 

Everything you mentioned screams ET65!

BTW: those "Blue Marvels" really sound ugly...