Amp wiring

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=51321
Printed Date: September 18, 2025 at 1:58 PM

Topic: Amp wiring

Posted By: leevander
Subject: Amp wiring
Date Posted: March 05, 2005 at 1:00 AM

I have 2 x 12" 800 watt subwoofers and 2 x 10" 400 watt subwoofers and a 1200 watt amplifier. Would it be safe to wire all four of these speakers to the one amplifier or should I get another amp.

The impedance rating for the 12" speakers is 4 ohm. The impedance rating for the 10" speakers is also 4 ohm. The impedance rating for the amplifier is 2 ohm capable stereo.

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bj hargrove

Replies:

Posted By: KarTuneMan
Date Posted: March 05, 2005 at 1:14 AM

Dump the 10's....and wire em up for a 2 ohm load........ALL THE POWER to 2 12's.........perfect.,

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Posted By: stevdart
Date Posted: March 05, 2005 at 4:27 AM

I agree you will have a mess if you mix subs, whether using one amp or two, unless you isolate the freq band to each......and then there still is no point. It looks like you are trying to use what you have available for the loudest sound. You said that is a stereo amp, so it has two channels capable of 2 ohm. Each set of subs will parallel to 2 ohms, so each set can go onto a channel. (Not a recommendation, but just to answer the question.)

Do a search through the forum for questions/answers about mixing sub sizes.