I bought a set up from Sonic with great prices. I cant say enough good things about Sonic it took me a week to get all my products but im on the east coast and they are on the west. I got to 8 ohm bozooka tubes, 1200 watt rms power bass amp the pioneer head unit, 440 power bass amp for my alpine type r 6 1/2 that I also got from them. The system rocks when I say it is loud I mean it is loud. I got them in a 2006 codorado truck.