turn on thump

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godsegoizhuge

Copper - Posts: 214

Joined: December 12, 2002

Location: United States

Posted: January 23, 2004 at 9:37 AM / IP Logged

Got a 2000 escalade and the guy had a previous stereo hooked up, but it all got stolen. So i used the turn on lead he had already and whenever the cars turned on the subs make a thump noise. Is there a way to solve this problem?? Thanks

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mobiletoys2002

Gold - Posts: 1,050

Joined: April 12, 2002

Location: United States

Posted: January 23, 2004 at 10:45 AM / IP Logged

What kind of amp are you using ???? The thump comes from the amp turning on, usually poor quality amps cause this problem most good amps have a turn on delay or a curcuit built in to minimize this thump.It sounds like the remote wire you used is connected to an ignition wire- turning the amp on when ther car is started(this is ok), But I would check all conections at the amp make sure ground is tight and rcas are all ok ,If you cannot fix the problem buy a new amp. Another thing would be if you added an aftermarket radio then use the remote lead off the radio to turn on the amps(at least this way they will only thump when radio is turned on. )

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geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: January 23, 2004 at 9:23 PM / IP Logged

I agree with mobiletoys2002, if you have an aftermarket deck, use the blue w/ white wire on that harness. If that doesn't work, or you're using your factory deck do this:

http://www.crutchfield.com/S-g4G6Pg1oJa9/tech/kb327.html

Try putting a diode inline on the turn-on lead, then put either a 470uf or a 1000uf cap in parallel. This will delay the amp turning on, and should get rid of the pop. The cap has to charge up before it'll allow voltage to pass to your amp remote. What you want to do is experiment with different value caps so that the radio comes on before the amp. You should be all set.

My ex once told me I have a perfect face for radio.

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ccroadshop99031

Copper - Posts: 102

Joined: January 26, 2004

Location: United States

Posted: January 26, 2004 at 8:28 AM / IP Logged

check ur ground

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turn on thump

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