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Sub wiring question

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=23162
Printed Date: May 14, 2025 at 1:32 PM


Topic: Sub wiring question

Posted By: eternalrollaz
Subject: Sub wiring question
Date Posted: December 21, 2003 at 5:51 PM

If i ran 2 2ohm DVC subs at a .5 ohm load to a amp that is 1 ohm stable would that do anything to my amp? Sorry if it seems like a stupid question.



Replies:

Posted By: Durwood
Date Posted: December 21, 2003 at 6:03 PM

Well, if the amp is only 1-ohm stable when bridged, and you present it with a 1/2-ohm load, the likely results could be overheating, blowing the fuse(s), or clipping.  Depending on what the actual impedance is with the subs in their enclosures, and how much of an engineering "fudge factor" is built into the amp's ratings, you might not have any problems at all.  It's hard to say without trying it, but it's certainly not recommended.

Scott Gardner




Posted By: eternalrollaz
Date Posted: December 21, 2003 at 7:09 PM
alright, thanks



Posted By: jeffchilcott
Date Posted: December 21, 2003 at 8:37 PM
what type of amp?some amps even though not recomended if the gain and crossover are down you can get away with it....orion, zapco, clif     brands like that   let me know the type of amp



Posted By: eternalrollaz
Date Posted: December 22, 2003 at 10:25 AM

The amp is a JBL 1200




Posted By: Durwood
Date Posted: December 22, 2003 at 10:42 AM
eternalrollaz wrote:

The amp is a JBL 1200

The JBL1200 is stable to 1 Ohm, but it doesn't put out any more power than it does at 2 Ohms (This is straight from the owner's manual).  With this in mind, I'd series/parallel your two subs for an overall 2-ohm load and call it a day.  With this particular amp, trying to run it at 1/2-ohm or even at 1 Ohm isn't going to give you any benefits.

Scott Gardner




Posted By: MONEYMAN101
Date Posted: December 22, 2003 at 5:11 PM

orions old hcca amps could go down to 1/4 ohm and they were extremely powerfull  you could check e-bay if you dont mind changing amps..



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