phase shift?

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=115002
Printed Date: November 04, 2025 at 1:00 AM

Topic: phase shift?

Posted By: spmpdr
Subject: phase shift?
Date Posted: July 11, 2009 at 11:20 AM

what does phase shift on an amp mean? it has 0-180degrees.what does it do to your sound?

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-A vision without a plan is just a hallucination-

Replies:

Posted By: DYohn
Date Posted: July 11, 2009 at 11:54 AM

spmpdr wrote:

what does phase shift on an amp mean? it has 0-180degrees.what does it do to your sound?

It adjusts the electrical phase of the signal so you can set up multiple amplifiers with speakers in various locations and you can keep their outputs in acoustic phase with each other.

Based on your question I'm guessing that probably made no sense to you. The way to use it is to put your main speaker amp at "0" and your sub amp at "0". Play some music and sit in the driver's seat. Have someone else slowly adjust the phase control on the sub amp. When it sounds best to you, leave it there. If it makes no difference, leave it at "0."

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Posted By: spmpdr
Date Posted: July 12, 2009 at 1:15 PM

thanks for the info and the how to.

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-A vision without a plan is just a hallucination-

Posted By: lspker
Date Posted: July 12, 2009 at 8:54 PM

I thought it was used to make the amp invisible, so it won't be stolen, like a cloaking device. :)