2ch connected to DVC 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=10195
Printed Date: September 13, 2025 at 5:26 AM

Topic: 2ch connected to DVC SUB

Posted By: bizzy818
Subject: 2ch connected to DVC SUB
Date Posted: February 28, 2003 at 8:18 AM

I was just wondering is it good to connect subs each voice coil to a channel each under stereo operation? wont it put to much pressur on the sub>?

Replies:

Posted By: Jussi
Date Posted: February 28, 2003 at 8:31 AM

There is (at least) two problems... first you have to adjust your amps R and L gains same - almost impossible.
Second, those channels (of your amp) could have some differencies... so it's not easy.

JL

-------------
Installer/Owner

JL-Autosound

Helsinki, FINLAND

Posted By: esmith69
Date Posted: February 28, 2003 at 10:24 AM

You're not really supposed to do that because both voice coils have to receive exactly the same signal. Now if it's a mono signal going in to the amp (like from some head units' sub preamp outputs), then obviously left and right will have identical outputs and you should be able to power each voice coil with its own channel.

And of course the other problem is that you have toget the gains to match up for both channels and that's sometimes kinda hard to do without using a 'scope.

Posted By: bizzy818
Date Posted: February 28, 2003 at 1:02 PM

esmith69 wrote:

You're not really supposed to do that because both voice coils have to receive exactly the same signal. Now if it's a mono signal going in to the amp (like from some head units' sub preamp outputs), then obviously left and right will have identical outputs and you should be able to power each voice coil with its own channel.
And of course the other problem is that you have toget the gains to match up for both channels and that's sometimes kinda hard to do without using a 'scope.

scope?

Posted By: esmith69
Date Posted: February 28, 2003 at 4:33 PM

lol. an oscilloscope