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Subwoofer 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=76840
Printed Date: July 02, 2025 at 4:52 PM


Topic: Subwoofer wiring?

Posted By: surendrant
Subject: Subwoofer wiring?
Date Posted: April 26, 2006 at 3:00 PM

If you wire a DVC subwoofer in parallel and then run it to an amp bridged is the total load 2 ohms or 1 ohm? Does bridging two channels of an amp drop the impedence? For example if you wire a 4 ohm SVC subwoofer on a two channel amp bridged does it lower the total load to the amp 2 ohms?



Replies:

Posted By: DYohn
Date Posted: April 26, 2006 at 3:40 PM

surendrant wrote:
If you wire a DVC subwoofer in parallel and then run it to an amp bridged is the total load 2 ohms or 1 ohm?

It depends on the subwoofers.  What is the impedance of the woofer?

surendrant wrote:
 Does bridging two channels of an amp drop the impedence? For example if you wire a 4 ohm SVC subwoofer on a two channel amp bridged does it lower the total load to the amp 2 ohms?

The impedance does not "drop," it is what it is.  But by placing a single load across two equal amplifier channels, each channel will be loaded by 1/2 the total impedance.  So, if a 4-ohm load is placed across both channels of a 2-channel amp, each channel will be loaded with 2-ohms.



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