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Redjake · 12-17-2003, 12:17 PM

I want to make a subwoofer for my home theater. I have a car amplifier for a car sound system, two subwoofers (without boxes), and an old Sparkle PSU laying around. Is there a way I could run the 12V line from the PSU into the amplifier and it actually power it? The amplifier would only be doing 125 RMS for each sub, 200 Max. That's a combined total of 400 watts. The PSU is 350, but I seriously doubt I will be maxing out these subs anytime soon. Besides, I read that the RMS is normal usage or something. I would need a way to actually turn the PSU on, because it won't turn on without the case switch, right? And the case switch runs to the motherboard?

I was wondering if I could just flip the power switch on the back of the PSU on, but I looked, and this model doesn't have a switch

I could buy a dual subwoofer enclosure box, and mount the amplifier on it, and put the PSU inside the box somewhere, right? I'm pretty sure car amplifiers use a 12 volt line, so this is where my idea started. I've checked other forums but I need a lot of opinions on this before I start anything

Then I could run the AV cables from the amp into a mono/subwoofer wire and run that straight into my receiver.

Just an idea...Anyone had any experience with rigging this sort of stuff up?

12-17-2003, 12:17 PM	#1 (permalink)
Redjake I'm a family man - I run a family business. Location: Wilson, NC	Car Amplifier/PC PSU I want to make a subwoofer for my home theater. I have a car amplifier for a car sound system, two subwoofers (without boxes), and an old Sparkle PSU laying around. Is there a way I could run the 12V line from the PSU into the amplifier and it actually power it? The amplifier would only be doing 125 RMS for each sub, 200 Max. That's a combined total of 400 watts. The PSU is 350, but I seriously doubt I will be maxing out these subs anytime soon. Besides, I read that the RMS is normal usage or something. I would need a way to actually turn the PSU on, because it won't turn on without the case switch, right? And the case switch runs to the motherboard? I was wondering if I could just flip the power switch on the back of the PSU on, but I looked, and this model doesn't have a switch I could buy a dual subwoofer enclosure box, and mount the amplifier on it, and put the PSU inside the box somewhere, right? I'm pretty sure car amplifiers use a 12 volt line, so this is where my idea started. I've checked other forums but I need a lot of opinions on this before I start anything Then I could run the AV cables from the amp into a mono/subwoofer wire and run that straight into my receiver. Just an idea...Anyone had any experience with rigging this sort of stuff up?