[budgetrider]

I took an old unused Clarion 12 inch with a 250 watt car amp then hooked up the amp to the power supply salvaged from an old pentium 1 and Voila! Car bass at home!

Aside from looking ghetto, no overheating problems yet.

 

[Kornphlake]

You're going to need a bigger powersupply. Those PC powersupplies are rated to well beyond their actual capability. For example I was using a 15 amp PC powersupply to power a test fixture that was only supposed to draw 8 amps or so, I'm guessing it had a thermal protection circuit of some sort. The powersupply ended up shutting itself down at about 3 amps load. I'm afraid you're going to underpower your amp or overheat your powersupply. I'm guessing your powersupply is 300W or less, I doubt that it can continuously output enough power to sustain an amp that big.

 

[binary visions]

You're going to need a bigger powersupply. Those PC powersupplies are rated to well beyond their actual capability.

Very cool, budget idea, though.

PC power supplies tend to be rated to what they can provide at peak draws - and even then, they're typically far overstated. The subwoofer is going to be continuously drawing a lot of wattage, I think you'll probably fry the power supply. Of course, since it was free, it probably doesn't matter that much - just make sure it doesn't set anything on fire when it goes

 

[budgetrider]

The possibility that it might be underpowered did cross my mind. I had a backup plan to run two computer supplies in parallell just in case, but I haven't had to yet.