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2 dvc subs to a 800 rms 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=122890
Printed Date: July 14, 2025 at 4:23 AM


Topic: 2 dvc subs to a 800 rms amp

Posted By: bjsydens
Subject: 2 dvc subs to a 800 rms amp
Date Posted: July 29, 2010 at 1:56 PM

I have 2 4 ohm dvc subs and an amp that is 800 rms at 4 ohm but the combined rms of the subs is 1000 rms. is this ok to under power the subs or should i connect them with a 1 ohm load and turn the subs down?

What i have:

Alpine SWR-1042D Subs x 2

Kenwood excelon x1200d amp




Replies:

Posted By: MikeHusain
Date Posted: July 29, 2010 at 5:59 PM
Well i guess the first thing to determine is if your amp is stable to 1 ohm mono.  if it puts out 800watts rms at 4 ohms, i would imagine it puts out more than that at 1 ohm, IF of course its stable at 1 ohm.




Posted By: bjsydens
Date Posted: July 29, 2010 at 7:14 PM
MikeHusain wrote:

Well i guess the first thing to determine is if your amp is stable to 1 ohm mono.  if it puts out 800watts rms at 4 ohms, i would imagine it puts out more than that at 1 ohm, IF of course its stable at 1 ohm.


The website says its 1 ohm stable but has no rms wattage posted next to this. It also says its 1200 rms at 2 ohms but I cannot connect my subs to 2 ohms.




Posted By: stevdart
Date Posted: July 30, 2010 at 9:22 AM

Wire your two subs according to the wiring diagram found on this site;  series-wire each DVC sub and then parallel the two subs for 4 ohms. https://www.the12volt.com/caraudio/woofer_configurations.asp~Q~2~I~42

 You cannot "underpower" speakers.  Their RMS continuous power handling rating does not have to precisely match the amplifier's RMS power rating.



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: bjsydens
Date Posted: July 30, 2010 at 2:57 PM
stevdart wrote:

Wire your two subs according to the wiring diagram found on this site;  series-wire each DVC sub and then parallel the two subs for 4 ohms. https://www.the12volt.com/caraudio/woofer_configurations.asp~Q~2~I~42

 You cannot "underpower" speakers.  Their RMS continuous power handling rating does not have to precisely match the amplifier's RMS power rating.


 

thank you this is the information i was looking for.






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