Driving out a 4ohm Woofer with a 1ohm amp

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=39190
Printed Date: May 10, 2024 at 1:44 PM

Topic: Driving out a 4ohm Woofer with a 1ohm amp

Posted By: pumara_iep
Subject: Driving out a 4ohm Woofer with a 1ohm amp
Date Posted: September 15, 2004 at 2:18 PM

I have a Dual voice coil 4 ohm woofer. What happens when you run it with an amp with an impendance of 1 ohm? Lets say the woofer rms rating is 500. and you run an amp that puts out 500w @ 1 ohm. is that safe?

Replies:

Posted By: evanc
Date Posted: September 15, 2004 at 2:45 PM

And amp doesn't have an impedence (or ohms), that is determined by your speaker, or subwoofer in this case. Depending on how you wire your speaker is how you create a certain resistance level. With your speaker, you can either have a 2 ohm or 8 ohm load to your amplifier. The specs of your amp at those resistances and whether or not your amp can handle those resistance will help you determine how to hook everything up.

Click link #38 for a good description: https://www.bcae1.com/

Posted By: pumara_iep
Date Posted: September 15, 2004 at 3:53 PM

your just missing the whole question here man! Let me rephrase the question. Is it okay if you have a dual 4 ohm woofer wired in 2ohm, hooked up to an amp that is 1 ohm stable? If not, what happens to the woofer?

Posted By: Kingfisher
Date Posted: September 15, 2004 at 3:58 PM

The short answer? Nothing. If your amp is 1 ohm stable, and you have the woofer wired to run at 2 ohms, then it's going to work. Period. There's no problem with setup.

Posted By: 94legend
Date Posted: September 15, 2004 at 4:05 PM

LOL ! rgr jsut like what king fisher is saying!

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Posted By: stevdart
Date Posted: September 15, 2004 at 7:03 PM

pumara_iep wrote:

your just missing the whole question here man!

Give the man some respect for taking the time to explain something important to you. You did say "an amp with an impedance of 1 ohm..."

When you get to the point where you understand the relationship between an impedance load and the effect it has on the amp, and you're not phrasing your questions like that, then maybe somebody will sorta understand what you're saying.

Cheers

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