lol i take it you looked at my build log. i had mine around 1200. they got stinky some times but i was newer and listening to someone else who i believe told me "dont be afraid of a little clipping" so that should answer why it was clipping lol. but anyways, yes i think if you can keep the signal clean, 1200w should be fine. however, if you arnt very sure of yourself and your ability to design and tune a system then always go a little smaller. use that 750w amp untill you really know how to set everything up then start to look at bigger amps. dont push a sub to its limit till you know how to control it.
edit - i had an autotek
thank you