Multiple amps, one sub
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=24981
Printed Date: May 14, 2025 at 11:03 PM
Topic: Multiple amps, one sub
Posted By: devilsquid
Subject: Multiple amps, one sub
Date Posted: January 21, 2004 at 12:05 AM
Im wondering if its possible to hook multiple amps to one sub, or would it fry the amps?
Replies:
Posted By: aggie altima
Date Posted: January 21, 2004 at 1:00 AM
It wouldnt fry the amps, but theres a possibility of damaging the speaker.
Posted By: DYohn
Date Posted: January 21, 2004 at 8:28 AM
You can only hook multiple amps together if they are designed for it. Some amps have interconnect capability so that you can in effect bridge them across multiple chassis. This capability exists on very few generally high quality competition level amps. You cannot connect multiple amps together if they are not designed for it (just like you cannot bridge a stereo amp if it is not designed for it) without damage to the amps. The speakers won't care, by the way, unless you exceed their power rating.
Posted By: Metra Tech
Date Posted: January 21, 2004 at 9:32 AM
You can also use dual voice coil woofers with two amps. That seems to be pretty popular now.
Posted By: devilsquid
Date Posted: January 21, 2004 at 11:58 AM
thats what i figured...i have two small amps laying around and one 10 sub and i was thinking of how to put it all together to sell it...ohwell...thanks for the input! -------------
Posted By: customsuburb
Date Posted: January 21, 2004 at 4:56 PM
You can use one 2 channel amp send each of its channels to the DVC sub and you would get the power rating it puts out at 4 ohm 2 channel combined for your sub. Or you can bridge it. Make sure your amp can do this though.
Posted By: wvsquirrel
Date Posted: January 21, 2004 at 7:42 PM
Using multiple amps on a DVC sub (1 amp per voice coil) is called Independant Wiring, AND IS NOT RECOMMENDED unless if can not be avoided. Here's some information on the Dangers of Independant Wiring from JL Audio ------------- Squirrel
"No more Cpt. Kirk chit chat"
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Posted By: devilsquid
Date Posted: January 21, 2004 at 11:53 PM
were getting of track here...i was talking about a svc sub...putting two amps into the same sub.
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Posted By: docka
Date Posted: January 22, 2004 at 12:42 AM
simular question...... i know i have a sh*t amp but i have a usaudio 660 watt amp and a pioneer 800 watt sub. i currently have 2 channels bridged and its running the sub but i wanna bridge or connect or whatteva the whole power of the amp to the sub as its a 4 channel amp and only using 2 channels bridged. can i just bridge 1 and 2 and connect them in series or paralel to 3 and 4 bridged. im new to all this car audio stuff and i just need help, thanks
Posted By: wvsquirrel
Date Posted: January 22, 2004 at 1:53 AM
Even if it's an SVC sub, you still don't want to use 2 seperate amps to feed it, unless the amps are specifically designed to be joined/combined together.
What you run into is variations in the signals comming from each amp (differences in the input, gains, etc) which will eventually tear the sub apart. So no, it's not a good idea. ------------- Squirrel
"No more Cpt. Kirk chit chat"
If its too loud, then you're too old
Donate to the12volt.com
Posted By: forbidden
Date Posted: January 22, 2004 at 12:49 PM
And in this case with your 4 channel amp, the amp does not combine the output of all 4 channels to give you more power. You can only bridge the 1 and 2 outputs or the 3 and 4 outputs to power your svc sub.
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