regarding 1ohm amp stability.

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=127735
Printed Date: May 15, 2025 at 9:47 PM

Topic: regarding 1ohm amp stability.

Posted By: douglas79
Subject: regarding 1ohm amp stability.
Date Posted: June 25, 2011 at 1:25 AM

This isn't something I'm looking to do, just something I'm curious about. Let's say you have an amp that is NOT considered 1ohm stable. Is there anything bad about still presenting the amp with a 1ohm load assuming you keep the gain fairly low? Like for instance if you kept the gain at a low enough level to result in the amp outputting at 1ohm what it would normally output at 2ohms, are there still problems that could arise simply in virtue of the fact that the amp is running at 1ohm?

Replies:

Posted By: sthrnbmpn
Date Posted: June 26, 2011 at 4:27 AM

ive tried this on a few amps just to see for my self,

an iseen it work but i wont do it anymore or advise anybody to do it either,

ive seen it pop inline 60 amp fuses, the blade fuses in the amp itself, go into protect an also not do anything at all besides beat my trunk harder than before, your cars electrical capabilities have a lot do with it to, h.o. alts an high end batts will let sum amps run lower ohm loads with no problems

cars with weak electrical power will do damage to amps even at 2 or 4 ohm loads let alone 1 or 1/2 ohm

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1000 watts of lp, now need sum hp an mids

Posted By: DYohn
Date Posted: June 26, 2011 at 9:07 AM

Yes, low loads can cause problems. The gain does not limit the power output of the amp by the way, it only changes the curve of how much input voltage is required to attain the output. Placing too low a load on some amps can cause the output devices to burn up on over current even at low power levels. This is why most good quality amps will shut down in protection first; it is detecting too high current through the output and protecting the transistors.

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