hey there i am looking at changing my amp setup. after buying, and in turn LOVING my ashdown guitar amp; it's time my bass gets the same treatment. anyways, looking at the mag series and just wondering what to do for speakers! i'd like to keep it all in the $750-1000usd range. so here's my thoughts. 4x10 combo 2x10 combo+15" extension or the 15" combo with a 15" extension. what would be ideal?!?! i'll be using it in clubs and halls, nothing huge, but certainly bigger then my current setup (yorkville 1x15 combo) can fill. i don't want muddy (as i think 2 15's would give me) and i still want that chest shaking oomph! so is the 2x10 and 15 my best choice? inother words, what's your opinion!