The Kustom cabs give out about 600 watts each, but they're also 8 ohms each, therefore if I needed the full 1200 watts I'd need 4 cabs right? (8 divided by 2 = 4 divided by 2 =2, right?) Is there a box or something that can change the impedence of the cabs? - 2 cabs should be enough, they'd give out 600 watts each... I'd rather not re-wire the things to do it - would soldering a resister to each side of a couple jacks from an old pedal do it if it were inserted between the amp and cabs?