two 4 ohm svc subs parrallel to 1 ohm?

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=80923
Printed Date: May 12, 2025 at 8:51 PM

Topic: two 4 ohm svc subs parrallel to 1 ohm?

Posted By: forbidden
Subject: two 4 ohm svc subs parrallel to 1 ohm?
Date Posted: July 28, 2006 at 10:07 PM

If say you have a 2 channel amp and it is running bridged to a 2 ohm load, the amp in essence does indeed see it as a 1 ohm stereo load and 99.99999999 percent of amplifiers will not like this kind of load.

4 ohm stereo = 8 ohm mono

2 ohm stereo = 4 ohm mono

1 ohm stereo = 2 ohm mono This is what he is talking about.

.5 ohm stereo = 1 ohm mono.

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Replies:

Posted By: DYohn
Date Posted: July 28, 2006 at 11:19 PM

A stereo amplifier is the same as two amplifiers in one chassis. When they are bridged together, the two amps are sharing one load. Each of the two amps must be able to handle 1/2 the impedance of the total load. If the total load is 4-ohms, 4-ohms is being shared between two amps. 1/2 of 4-ohms is 2-ohms. Each amp must be stable with a 2-ohm load. 4-ohm mono, if connected to a bridged stereo amp, is the same load as a 2-ohm stereo load.

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Posted By: aznboi3644
Date Posted: July 29, 2006 at 2:33 AM

DYohn...very simply stated...like two kids sharing a twix..if theres two twix than each kid gets one

Posted By: cutlass013
Date Posted: July 29, 2006 at 4:58 PM

wow i knew that already but i still feel like i learned sumthing thnx i am fixing to do the same thing as the installer

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