Pop when turned off

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=4533
Printed Date: August 14, 2025 at 4:32 PM

Topic: Pop when turned off

Posted By: Arie
Subject: Pop when turned off
Date Posted: October 16, 2002 at 11:52 AM

Hello

I have 2 amplifiers installed (2 different firms). When I turn iff the system I hear a pop out of the sub. What can I do ?

Replies:

Posted By: go2pac
Date Posted: October 16, 2002 at 1:24 PM

disconnect the rca to the sub amps and turn off the system by the key, if it does not pop then you will need to turn off the amps before the headunit turns off by the ignition key.

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Karl

Pacific Accessory Corporation
Mobile Audio Interfacing Equipment
Connecting You to Your Music Since 1976

Posted By: Arie
Date Posted: October 16, 2002 at 10:56 PM

OK, but I don't want it to work like this, I want to turn off all the system together, not the amps, and then the headunit.

This is what I was doing till now, I want something more serious

Posted By: SOUND PRESSURE
Date Posted: October 16, 2002 at 10:59 PM

Check your grounds. Make sure that all the paint is off on your ground for the amps. Check your rca's.

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Sound Pressure

You know you have the right amount of pressure when your eyes start to water! Now you've got Juice!

Posted By: go2pac
Date Posted: October 17, 2002 at 1:13 AM

Quote: Originally posted by Arie on October 16, 2002

OK, but I don't want it to work like this, I want to turn off all the system together, not the amps, and then the headunit.

This is what I was doing till now, I want something more serious

Well duh... i know thats not what you want to do. When i said you need to turn off the amps and then the headunit, i would think you would ask how to do it automatically. All you do is pull your key out and the delay circuit would do the rest.

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Karl

Pacific Accessory Corporation
Mobile Audio Interfacing Equipment
Connecting You to Your Music Since 1976

Posted By: Arie
Date Posted: October 17, 2002 at 12:47 PM

How can I build the delay circuit ?

Posted By: go2pac
Date Posted: October 17, 2002 at 4:07 PM

https://www.go2pac.com/misc/miscdiagrams/turnonoffdelay3.pdf

This will only work if its the radio that makes the pop and not the amp.

-------------
Karl

Pacific Accessory Corporation
Mobile Audio Interfacing Equipment
Connecting You to Your Music Since 1976

Posted By: Arie
Date Posted: October 17, 2002 at 10:39 PM

Thanks

I will try it