i was one of the first to own the new p2s here in phoenix. i didnt get these from online car stereo, i got them from a local shop. for the price they arent bad. i wanted to go with a 100% rockford fosgate punch series audio system in my 2006 pt crusier. i got 2 of these 10"s in a slot proted box, 2011 p652s, 2011 p653, 2010 p500.2, soon to be a 2010 p400.4, all 4awg punch power and ground wire with the big 3 install. the subs are loud and fairly clean. they are a huge step up from the old p2s. you will be happy if you buy them. im thinking about building a sealed box for more sound quality. if you decide to buy these, and put them in a sealed box, please post a review and tell me how you like it. THANKS!!!!!!! ROCKFORD FOR LIFE!