Funny, I purchased a PYLE 12' amplified sub tube (supposedly 600w) for $69.00 on ebay. It sounds awesome!!!! I have a pioneer head unit (DEH-P7700MP) which plays mp3's. I cut the lows going to my stock speakers and usually run the sub crossover up to 125Hz. Only problem is that it takes up a little more than half of my trunk.Originally Posted by kpaske