ok, well after getting some replies here: http://www.talkbass.com/forum/showthread.php?t=170602 I've devoloped an idea. My Avatar B212 is 4 ohm, and i have the QSC RMX1450. Now, if I add another 4 ohm cab later I will have 450W into each = total of 900W. If, however, i had two 8 ohm cabs and bridged both, would i then get 1400W? I'm starting to think I woulda got more power goin the 8 ohm route and bridging. PLEASE HELP!!!!