Okay, this is what I have in my Toyota Tacoma Xtra Cab... Head: Kenwood Z828 MP3 CD Player Amps: Sony Xplod 800w 4channel for highs Sony Xplod 1000w Class D amp for sub Sub: 1 Kicker Solo-Baric 10" Woofer in a sealed box. Okay, here's the deal, I bought the sub and box at Al & Eds Autosound.... took it to my friend at best buy and he told me to get the Sony amp to run it, got the amp, he installed it and we hooked the sub up and on some songs it just pops and doesn't sound good at all. It's wired at 1ohm? I think and he said it's pushing the full 1000w to the sub. So it doesn't sound good.... we put a sony xplod 12" in a ported box in there and it bumped atleast twice as hard. I was extremely pissed of. I went back to Al & Eds and told him what happened, he asked me what amp I had and I told him, he said it wasn't enough power, he came, listened to it and said that I am underpowering the sub. So, I call up Matt and Matt tells me I'm OVERpowering the sub. I really don't know who is telling me the truth! The guy at Al & Eds told me to get a PPI amp, so I did... I have yet to hook it up to the sub to see if it pushes it harder. I just want someones opinion on this. I know SHIT about stereos and stuff. I'm going to hook up the PPI, if it doesn't sound better than that sony, i'm going to get a 12 kicker, if that doesn't work, i'm taking them both back, keeping the sony and getting that xplod 12 and saving a whole lot of money. The PPI amp I have says it will push 1 x 500w... I don't know what that means but the guy at al and eds said that it will push that kicker to its full potential and that the sony amp was only pushing it at about 30% of it's potential. Please, someone help, I'm spending alot of money I don't have on this... I want to do this right.