Help me understand something. a 4x10 cab moves 40 inches of air correct? a 1x15=15? and a 1x12=12. well 2x12's would be only 24... afar cry from 40 from a 4x10. yet some people on this board say that the 12's crush the 10's. i love my peavey cab but the damn thing weighs about as much as a backstreet boy. so 2 1x12's sounds fun. hell i dunno. i play in a LOUD blues/r&b/jam band with a guitar player who runs 2 50 watt tube amps on 10 and a LOUD keyboard player. 4x10's cut it i was just wondering if 12's would.