sub popping

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matthew perkins

Member - Posts: 13

Joined: June 18, 2008

Location: United Kingdom

Posted: December 30, 2008 at 12:01 PM / IP Logged

When the engine is off and the key is in the accessory position the sub starts popping when i turn it on via my independent toggle switch that i installed. is it a power problem? because when the engine is on the popping stops. do i need a capacitor? any help to solve this very annoying problem would be greatly appreciated.

Many Thanks

Matt

Mpice

i am an idiot

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Joined: September 21, 2006

Location: Louisiana, United States

Posted: December 30, 2008 at 6:26 PM / IP Logged

Did you use a Line Out Converter? Did you connect it to the rear speakers of the car? When the sub is popping, is the radio powered up?

matthew perkins

Member - Posts: 13

Joined: June 18, 2008

Location: United Kingdom

Posted: December 31, 2008 at 4:50 AM / IP Logged

No i have not used a line out converter the front and back speakers are still powered by the head unit, my 6x9s are powered by an amp and my sub is powered by a separate amp, i have a distributor which reads about 12V when the engine is off. the sub pops as soon as i turn it on the head unit does not even have to be on. Cheers for your quick reply

Mpice

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: December 31, 2008 at 10:25 AM / IP Logged

How is the subwoofer amp connected to the head unit? Make model?

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ragsports

Copper - Posts: 192

Joined: March 17, 2008

Location: Michigan, United States

Posted: December 31, 2008 at 6:43 PM / IP Logged

You say your front and rear speakers are powered by your headunit, and then you go on to say that your 6x9's are powered by an amplifier. Is this a third set of speakers? please clarify how you have this set up...

kureti

Member - Posts: 45

Joined: November 26, 2008

Location: India

Posted: January 01, 2009 at 2:04 AM / IP Logged

Use a Turn on POP Delay refer this site for more details http://www.davidnavone.com/cart.asp?24&cat=1

K. Venugopal Rao

matthew perkins

Member - Posts: 13

Joined: June 18, 2008

Location: United Kingdom

Posted: January 02, 2009 at 7:52 AM / IP Logged

The amp powering the sub is a legacy blue LA430 and is connected to the head unit via RCA cables, the head unit is a Sony CDX-RA650. Ive had the equipment for years now and have had no previous problems. sorry i meant my front speakers are powered by the head unit and my rear 6x9s speakers are powered by a basic sony amp. the popping is now apparent when the sub is on the engine is on and the head unit is off very annoying!!

Mpice

i am an idiot

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Joined: September 21, 2006

Location: Louisiana, United States

Posted: January 02, 2009 at 8:06 AM / IP Logged

When the head unit is off, turn off the toggle switch that turns that amp on.

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: January 02, 2009 at 9:53 AM / IP Logged

Toggle switch?? Is that how the sub amp is on with the HU off??

Sounds like it could be a bad ground or a bad amplifier. Check your ground return resistance first and let us know what it is.

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i am an idiot

Platinum - Posts: 13,670

Joined: September 21, 2006

Location: Louisiana, United States

Posted: January 02, 2009 at 10:34 AM / IP Logged

matthew perkins wrote:

the sub starts popping when i turn it on via my independent toggle switch that i installed. is it a power problem?

Many Thanks

Matt

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