How big of an Amp do I need? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 3 (permalink) Old 12-04-11, 08:16 PM Thread Starter
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How big of an Amp do I need?

So this question is for anyone who knows about car audio systems.

The Subwoofer I'm getting is Dual Audio SBP10 which has 750w (375rms) 4 ohms. I'm sure it isn't the greatest one in the world, but it is coming with the box I want so I'll just use it until it blows. So as much as I appreciate all advice, I don't need any advice on the type of sub I'm getting please :)

Anyways, I'm wondering how big of an amp I need to get. Like a one channel that does 375 rms, or 2 channel that does 175rms or something like that.

Any help would be greatly appreciated!


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post #2 of 3 (permalink) Old 12-05-11, 09:55 AM
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Re: How big of an Amp do I need?

If you have one speaker, all you need is a one channel amp that is rated to 750 watts.

I have two dual 12 inch speakers man, both limits are at 500 watts, but when I hook a 2 channel 1000 watt amp to it, won't nobody have anything to say about dual speakers in my

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post #3 of 3 (permalink) Old 12-05-11, 12:46 PM
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Re: How big of an Amp do I need?

That's 750 peak watts. You need to limit your amp rms size to match the rms rating on the sub. The only way you would need a 2 channel amp if it was a lower wattage (100 watts or so) and run it bridged into a single sub. I've got a old Pioneer 75 x 2 amp I ran bridged into a single Rockford Fosgate P2 12" and managed to burn up the voice coil in a very short time. Replaced it with a Kenwood sub that has held up, but doesn't hit nearly as hard as that P2 did. I miss those days but had to give it up.
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