amp impedance

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=95327
Printed Date: July 04, 2025 at 5:19 PM

Topic: amp impedance

Posted By: Lubrano
Subject: amp impedance
Date Posted: July 04, 2007 at 11:05 AM

Why would a 4 ohm sub speaker be purchase over a 2 ohm speaker? a 4 ohm speaker requires more power due to its hight imp/res. So what would be the reason to purchase this speaker?

Thanks

Replies:

Posted By: DYohn
Date Posted: July 04, 2007 at 2:01 PM

There are lots of reasons. Perhaps the most common one is to match the speaker load to an amplifier's load capability. There are other performance-related and SQ-related issues as well. It is not just about power numbers.

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Posted By: tubbs04
Date Posted: July 04, 2007 at 4:49 PM

A speakers Ohm level has nothing to do with how much power it requires to run. Like DYohn said, its mainly to match the speakers load to what the amp can safely put out at a certain ohm level....

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