okay i found a complete MTX package which includes two 12'' inch subwoofers, a 1000 watt amp, with a sub box built specifically for those particular subs (supposedly) and the wiring kit for cheap, the two subs are 1000w / 500w RMS, what my question is, is how well would two 12" subs hit with 500w RMS, is that weak? it will be going in the trunk of my mercury cougar by the way. i dont really know by wattage how loud it is or anything, and i also realize that there are many other determining factors to the loudness of it but what do you guys think? input is appreciated, thanks 