is that 150 dollars a peice or is that two for 150 if so your gonna have to either go with pyramid 15's or some cheap used audiobahn subs, i would go with the pyramid hyperbole 15's over any audio bahn, yeah and thats saying a shiit load, then hit those two 15s up with a cheap ole boss amp say a 600 watt peak one, should be nasty loud as in dude why didnt you save up some cash heh but its a good first system. (oh hey do you have your amp and wires and headunit and etc.'s already??)
well i don't know if these would be better than those pyramid subs, but look into kicker comp's there really cheap like 60-70 bucks per sub and don't need much power. 200 watts rms.