Amp turn on/off pop
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Joined: Mar 2004
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From: B.C., Canada
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Amp turn on/off pop
When my decks turns on and off, I get a slight thump from my subs. Not disgusting, but bad enough to annoy me.
How can I fix?
How can I fix?
Registered!!
Joined: May 2004
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Turn On/Off Thump
Turn on thump can vary from a slight pop to a mind shattering, teeth rattling BOOM! This thump is caused by the audio circuitry stabilizing when power is applied. Most amplifiers and source units have muting circuitry that lasts a couple of seconds to allow these fluctuations to subside before passing a signal. However, if the amplifier un-mutes before the source unit or any other accessory, you better watch out. Here are some things to try if you have turn on thump.
1. Verify that the amp has a good audio ground reference. (See rule 6 of the Ten Commandments of noise free installation.)
2. Don't install the system so the amplifiers can be switched on when the source unit is turned off.
3. If you still have thump, add a turn on delay module in line with the remote turn on wire to the amp.
4. This concludes the section on turn on thump.
Turn on thump can vary from a slight pop to a mind shattering, teeth rattling BOOM! This thump is caused by the audio circuitry stabilizing when power is applied. Most amplifiers and source units have muting circuitry that lasts a couple of seconds to allow these fluctuations to subside before passing a signal. However, if the amplifier un-mutes before the source unit or any other accessory, you better watch out. Here are some things to try if you have turn on thump.
1. Verify that the amp has a good audio ground reference. (See rule 6 of the Ten Commandments of noise free installation.)
2. Don't install the system so the amplifiers can be switched on when the source unit is turned off.
3. If you still have thump, add a turn on delay module in line with the remote turn on wire to the amp.
4. This concludes the section on turn on thump.
Registered!!
Joined: May 2004
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From: Surrey BC
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Originally Posted by MegaHurtz
When my decks turns on and off, I get a slight thump from my subs. Not disgusting, but bad enough to annoy me.
How can I fix?
How can I fix?
This is what your antenna system looks like, it's number 3.
Thread Starter
Joined: Mar 2004
Posts: 51,077
Likes: 4
From: B.C., Canada
Rep Power: 786 Aftermarket CD player
I have a proper remote wire
brash: amp cannot be turned on when the deck is turned off
I was kinda thinking ground as well. I have my amp and cap grounded to the little bump between the back seat and the trunk. Found a big screw that fit in tightly and connected it like that.
I have a proper remote wire
brash: amp cannot be turned on when the deck is turned off
I was kinda thinking ground as well. I have my amp and cap grounded to the little bump between the back seat and the trunk. Found a big screw that fit in tightly and connected it like that.
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