Hey all, i'll be stopping by Nick's shop in the next few days picking out my new "high volume" rig. i'm thinkin' of a 2x10 + 3x10 rig, to give me the most punch and maximize my later medium gig options. but thought maybe i should go with a 1x15 instead of the 2x10. what would the 15" give me, a guy with many a predilection for that low B groovin'? also, if i ran whatever combo of cabs in series, would i run into some SPL / volume issues? i could go parallel, but my Peavey DPC only cranks out about 500 watts @ 4 ohms. any thoughts?