I want to build a custom home theater system using car audio. What do i need?

• I want major bass. I want something to rattle the house. I will use the output from my tv for any amps. My real problem is the power converter. I know car amps need a lot of power.

• Answer:

  Everyone here has been giving you mean answers, so I figure instead of telling you what you should do instead, I'm going to tell you how to actually do this. It is possible, and of course a real home audio set-up would be much better, but this is what you want to know, so I'll tell you. Now, I'm making some assumptions here like that you have all the speakers you want to hook up, some wires and cables, the amps, speaker boxes for your subs and speakers, and any crossovers you may need for your speakers if they're two or three way speakers. You seem to know what you're doing as far as hooking up a car audio system goes, so I'll leave all of that up to you, what it comes down to now is the last step -- hooking up the power and ground. Depending on your amps, you're going to be using a lot of wattage to using an extreme amount of wattage. This will make your electrical bill go up considerably. The best thing I can think of would be to get a powerful converter such as the Kendrick Astro Instruments 120V,10 amp Power supply which converts 120VAC to 12VDC with a 10 amp output. You'll then want to hook that up to your amplifiers. You'll also have to figure something out as far as a remote turn-on for your amps. I'm actually not fully sure of how those work, I'm not sure if your car's head unit sends a constant stream of electricity to the amps to let them know to stay on or if it's more like a quick jolt to say "hey, turn on!" You may want to consult your amps' manufacturer(s). This system is not by any means recommended by the FCC, but what the hell do they know, right? Have fun shaking the walls!