Powering amp from pc power supply

[CaptaiinCaveman]

Hey guys, so I bought this power supply (1000 Watt 2 Channel Amplifier (CA-AM20350) | FUSION Electronics) and have a pair of subs which I wanna use on my pc, but I do not know what power supply to use? The one I have in mind is a 500w unit outputting 42A on its 12v rail, would that be enough? Thanks

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[akheathen Premium Member]

yes, that amp shouldn't pull more than 20a. i would suggest a capacitor to dampen any "noise"