no seriously, stick with reputable brand names....you get what you pay for so if you pay absoloutely nothing for it, then you basically own nothing.....stick with good amps that have clean power....pyramid 1200 watt amps are more like 200 watts of very very dirty power....lots of those cheap subs like jensen, pyramid or pyle, claim 1000 watts of power handling, throw 500 to it and it's begging for mercy.....i am putting 1060watts into my type r 15 and it absolutley loves it....and i have it in a 1.5 cubic foot sealed box...wonderfully clean sounding....as a matter of fact i have a first place victory in sound quality.....