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Audio Systems/amp causes speakers to pop

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Expert: Peter G. Lee - 11/9/2006


Question
a friend of mine has an 800w amp when it's hooked up it works fine until you either turn the volume all the way down or turn the car/stereo off when he does it cause the speakers to pop any ideas what may be causing this?  

Answer
Hi Chris,
I could use a bit more than "a 800w amp pops" please.
Speaker spec?
Head unit make and model?
Connection to amp from head unit is by lo-level RCA cables or hi-level speaker input?
Layout of effected speakers?
Is it one, a pair or all four speakers?
Is the pop a single "POP" or a series of "pops"?
How loud is the popping? Is there any visual indication on the radio's panel, such as dimming at the same time as the pop?
Is it a 'Pro' installation, factory or self installed?
Is the amp powered directly from a fused connection on the car's battery?
Hear from you soon, Peter

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Peter G. Lee

Expertise

Accessory installations including audio, security and lighting, general wiring and fault finding. Nothing specific to US car electrics such as ECUs or engine management systems please i.e. how do I get the radio out of a Saturn, we don't have Saturns in Europe so I wouldn't know.

Experience

11 years as a security and audio installer in the U.K. 9 years own company in South West of U.K. installing for a number of high street retailers incluing Trinity in-car centre, Road User, Halfords and A.1. Past advisor to and chairman of Sold Secure initative gloucestershire police. member PACT (partnership against car theft)U.K. police, Kit car builder VW air coole

Organizations
Member of the institute of diagnostic engineers M.I.Diag.E

Education/Credentials
Certified by Clifford, Cobra (U.K.) Serpi Star-Gamel, Moss, Philips, Tracker (Lowjack), Pioneer blue chip installer, Kenwood installer. City and Guilds, A.R.E

Past/Present clients
Over 2,000 between 1988 and 2000

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