4 ohm speakers ok for 2 ohm headunit?

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=115517
Printed Date: May 10, 2024 at 10:11 AM

Topic: 4 ohm speakers ok for 2 ohm headunit?

Posted By: rodriik
Subject: 4 ohm speakers ok for 2 ohm headunit?
Date Posted: August 07, 2009 at 1:16 PM

Hi guys. I have a 2009 Jeep Wrangler and I'm putting in new speakers. Two Boston SL65s in my soundbar, and two Boston SL60 components up front.

The 65s are 4 ohm, and the 60s are 3 ohm. I have a "mygig" navigation headunit and am keeping it, but I was told it is 2 ohm.

A guy told me it will sound terrible if I install these speakers because they will be too quiet and there will be no bass since it is going from 2 ohm to 4 ohm. Is this correct?

thanks

Replies:

Posted By: i_want_the_boom
Date Posted: August 07, 2009 at 1:43 PM

If you want those speakers to sound good you should get an amp and run the speeakers to it.

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Posted By: rodriik
Date Posted: August 07, 2009 at 2:02 PM

i_want_the_boom wrote:

If you want those speakers to sound good you should get an amp and run the speeakers to it.

I don't really want to install an amp. Should I get some cheaper 2 ohm speakers instead of using these?

Posted By: DYohn
Date Posted: August 07, 2009 at 2:54 PM

You'll be fine.

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Posted By: rodriik
Date Posted: August 07, 2009 at 5:06 PM

DYohn] wrote:

ou'll be fine.

OK. Guy was wrong that it will sound worse? or be really low? thanks

Posted By: i am an idiot
Date Posted: August 07, 2009 at 7:44 PM

The deck will deliver slightly less power into the new 4 ohm load. Keyword was slightly. This reduction in power will result in a drop of around 3Db. This will be unnoticable to most ears..

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Posted By: yimke
Date Posted: August 09, 2009 at 10:00 AM

Your factory amp might even last longer because of the increased resistance. Doesn't run as hot usually.

I usually don't recommend this practice, but you should be fine. Like DYohn said above, most people won't be able to hear the difference. 3db is not a lot.

Posted By: DYohn
Date Posted: August 09, 2009 at 10:04 AM

An amplifier's impedance rating represents the minimum impedance it can handle, not what is required. If an amplifier is rated at 2-ohms, any load of 2-ohms or greater will work fine with that amplifier.

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