oem ohm spec

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=102490
Printed Date: May 09, 2025 at 11:59 PM

Topic: oem ohm spec

Posted By: heatman
Subject: oem ohm spec
Date Posted: February 23, 2008 at 10:47 PM

Hello All,

I have a 2001 Ford Excursion Limited with the Rear Seat Entertainment System. 2 Front Speakers & 4 Rear Speakers (2 Left & 2 Right). Can anyone tell me what the Factory Speakers are rated? in Ohms? Thanks. I want to match a new amp to the speakers.

Replies:

Posted By: sedate
Date Posted: February 24, 2008 at 10:22 AM

Do you have a factory amplifier?

If so - I have no idea what the impedence is - could be anything.

If not - probably 4-ohms.

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"I'm finished!" - Daniel Plainview

Posted By: DYohn
Date Posted: February 24, 2008 at 3:38 PM

I would not recommend adding an after market amplifier to OEM speakers.

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Posted By: Clean Install
Date Posted: February 25, 2008 at 12:04 AM

i agree ^^^

to find out just ohm them out... ?

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each failure, then we can improve ourselves

Posted By: Steven Kephart
Date Posted: February 25, 2008 at 1:49 AM

You can use a multimeter to measure the DC resistance of the speakers. The impedance will never fall below that point so it should get you an idea. Technically the DCR should be .707 of the nominal impedance, but in reality it rarely is.

Posted By: i am an idiot
Date Posted: February 25, 2008 at 11:24 PM

If you are going to connect 6 speakers to an amplifier, you really need to get a 4 channel amplifier that is 2 ohm stereo stable.(Most decent amplifiers are) Chances are the speakers in your vehicle are 4 Ohms. If you connect the 2 front speakers to the front channels of the amp, and connect the 4 rear speakers to the rear channels of the amp, You should be fine.

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