powering a car audio amp

[jeffmoss26]

Hey-
New to this part of [H]...
Anyway, my buddy has a car audio amp/subs that he wants to connect to his A/V receiver. The amp uses 12V DC. The two fuses on the amplifier are 2A and 40A. So I assume it needs 40A DC maximum. Is there any computer power supply that could put out this much power?
Thanks,
Jeff

 

[jonnyGURU]

Well.. That's 40A max, so most 600W would work fine. But I wouldn't recommend using a PSU without independent regulation to power the amp because if you put a load on the 12V and not the 5V you'll crossload the PSU and the voltage will drop drastically.

Alternatively, you can put a pack of resistors on a 5V lead and correct the problem.

 

[jeffmoss26]

thanks. what kind of resistors?