which amp goes with which sub

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=48475
Printed Date: May 15, 2025 at 1:54 AM

Topic: which amp goes with which sub

Posted By: maketibling
Subject: which amp goes with which sub
Date Posted: January 24, 2005 at 12:29 PM

I have a power acoustic FUBR-12 which has a dual 2 ohm voice coil and a 700watt RMS, 1800 watt max.

The way I figured what amp to use was. 700 watts multiplied by 2 ohms and divided by 2 voice coils. so a 700 watt amp.

Is this the correct way to figure the amp wattage?

Any suggestions will be greatly apreciated.

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Jesse

Replies:

Posted By: DYohn
Date Posted: January 24, 2005 at 12:37 PM

Wattage ratings on DVC subwoofers is generally listed as the total capacity for both voice coils. So your woofer is capable of max sustained 350 watts per voice coil. You want an amplifier capable of 700 watts into a 4-ohm load, or of 700 watts into a 1-ohm load (depending on how you wire the sub.)

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Posted By: maketibling
Date Posted: January 24, 2005 at 12:42 PM

so, wired in parallel would need a 700 watt amp with a 1 ohm load, and in series a 700 watt amp with a 4 ohm load. Right?

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Jesse

Posted By: DYohn
Date Posted: January 24, 2005 at 12:44 PM

Correct! Any amp UP TO 700 watts. Less is fine if it's setup properly.

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