iam trying to upgrade to new cabs. i play alot of types of music. every thing and eany thing ,radio head,led zep, pink floyd, ministry, primus, metal, funk, rock , reggae, little rap. right now iam useing a 4x10 from speakerhole.com and a carvin 15 inch combo. i am powering the 15 with the swr head or use both amps with my delay pedal. i know i want a fifteen maybe 2 and some ten's lol. i could get a power amp to use with my head. like have my head power one cab and the power amp power the othere. iam not really sure what i want for ten's ie a 4x10 a 6x10 or a 8x10.i would really like to get a 8x10 and 1x15(2x15) setup but would that be over kill. would a 4x10 or 6x10 do the same thing(with a 1x15 or 2x15). i was thinking i could really use the 8x10 when doing more rock songs and when i need more a dub deep bass type sound the 15 would be good to have.