center channel off f/l+ f/r- of deck

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=65308
Printed Date: July 17, 2025 at 11:53 PM

Topic: center channel off f/l+ f/r- of deck

Posted By: downstarinc
Subject: center channel off f/l+ f/r- of deck
Date Posted: October 30, 2005 at 1:49 PM

Someone told me that you could run a center channle off your deck using one +/- from each the front and right speakers of the deck..but it sounds kinds fishy..anyway to do a center channle off the deck that will give you true center channle sound? thanks!

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jl audio..nuff said

Replies:

Posted By: dwarren
Date Posted: October 30, 2005 at 2:38 PM

Just did a Boxster using that configuration for a center channel. It seems to work ok. It was an Alpine deck.

Just make sure to tape up all the other exposed ends.

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Posted By: gus1
Date Posted: October 30, 2005 at 4:07 PM

Hmm....

I know we used to entertain ourselves by listening to things on the test bench using a kind of a L minus R signal off a CD player. I think it was wire up L+R with one flipped polarity wise, and use that signal to whatever amp we were testing. As to using the speaker outputs of a deck, I would be pretty hesitant without seeing how the output IC of the deck liked seeing channels of itself connected to one another. If anything, you could probably parasite the center channel off of the 2 front + leads through a cap that would give you roughly a 400Hz or so Highpass....

Gus

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Wherever I go, that is where I end up......