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Sub woofer pop

By hchavez · Oct 05, 2008in Problems/Troubleshooting💬 12 posts👁️ 1,667 views
Posted Oct 05, 2008 · 16:28 UTC#1

When i start my car i get a pop in my sub. Does any one know what might cause this?

Posted Oct 06, 2008 · 01:20 UTC#2

Bad ground at the amp.

 

Bad amp.

 

Usually.

Posted Oct 06, 2008 · 01:54 UTC#3

Re check your amp ground and all other connection. If you can get a hold of an Ohm meter you can check the resistance level of each possible ground. Also what equipment do you have? amp/sub I mean, and how do you have them wired? 2Ohm, 4Ohm, etc.

Posted Oct 06, 2008 · 02:14 UTC#4

what kind of car is it? when we install aftermarket decks in some ford trucks with factory subs.. we have to put a 1k resistor on the amp turn on wire... and that eliminates the sub woofer pop when radio turns on... not sure if that's the same problem you have

Posted Oct 06, 2008 · 02:53 UTC#5

My sub woofer pops every turn on the volume knob. Every clicking twist on the knob, the woofer makes a faint pop. Does ne one else's do that.

Posted Oct 06, 2008 · 03:47 UTC#6
what kind of car is it? when we install aftermarket decks in some ford trucks with factory subs.. we have to put a 1k resistor on the amp turn on wire... and that eliminates the sub woofer pop when radio turns on... not sure if that's the same problem you have

 

This could be the problem. I have a Ford Sub.

Posted Oct 06, 2008 · 12:00 UTC#8

Put a 1000Ohm resistor on the Remote wire.

Posted Oct 06, 2008 · 14:30 UTC#9

Most Fords 2003 and up (the exceptions are e few THX systems that use a data signal to turn on the amp) need a resistor on the amp turn on line to eliminate sub pop. Some info on resister size is incorrect. It should be between 3.5k and 5k. I am a ford specialist and do this all the time it works 100% every time. The reason for the resistor is the factory amp uses a 5 to 7 volt turn on signal but the Aftermarket radio outputs a 12 volt turn on signal. The resistor drops the 12 volts down to a usable voltage that won't cause a pop.

Posted Oct 06, 2008 · 14:54 UTC#10
It should be between 3.5k and 5k.

 

Is it really that big of a resistor? I put the F in an 06 Shaker 500 stang and used a 1k Ohm resistor, worked fine.

Posted Oct 06, 2008 · 15:14 UTC#11

Actually, it does not drop the voltage down. All it is doing is limiting current. A voltage dividing network will cut the voltage in half.

Posted Oct 30, 2008 · 18:16 UTC#12

i use a 3.9 every time as its whats on hand. and yes it does change the voltage.