Originally posted by TimDimman
I agree with just buying a receiver...
It's nice to have a 12V bench supply though...Josh's TrippLite would work, PG makes one as well, but they really do go for $300, for that price, you can have a 100x5 amp made for 120V.
I would not do the battery, only because if the thing ever leaked, you'd be screwed. As well as it might have worked for Adam, I'd just call it luck. Also, the hydrogen fumes in the home, as well as corrosion taking over any other metal you might have around the battery scares me...When you trickle charge, hydrogen may be realeased as the water tends to boil in the battery...
I have never had anything at all corrode around the battery, ever.
I'm not saying go out and build this system because it is the ultimate, because it is clearly not.
However, if you have a car battery, a trickle charger and a car amp sitting around and you need a temporary setup, I say go for it.
I'm aware of the operational quirks of an unsealed battery, and I've never had anything that even resembled a problem with the setup in five years. I wouldn't call that luck.
So if you already have the bits and pieces and you really need some power, I say why not. However, I wouldn't advise you go out and spend money actually building a system like this. I do agree that simply buying a reciever or even a pro amp would be simpler and more cost effective for large power output.
I'm just saying if you have the three pieces of the puzzle, there's no harm in a temporary setup. Just don't be dumb when handling the battery.