ok, when they say that this amps max rating when ran mono bridged is 1200w @ 4ohms(http://www.stewartaudio.com/world12.html) are they measuring it differently then say ampeg would. for example.. the svt 4 pro is rated 1200w mono bridged at 4 ohms aswell... but at 4 ohms the svt 4 runs 2 channels of 490 watts as opposed to stewart worlds 350 x 2 @ 4 ohms. why on gods green earth would someone carry around an ampeg svt 4 pro instead of a stewart world 1.2 and an ampeg preamp if they have the same power and sound? please help me understand haha. thanks in advance.