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      09-04-2013, 06:04 PM   #72
Technic
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Drives: 2012 E92 M3, 2014 528i
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Location: Ft Lauderdale, Florida

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Quote:
Originally Posted by badsha View Post
I have exactly same problem! Same Hifi harnes from Technic and xd600/6 hissing noice Even at minimum gain and at muted.


Even i can hear scartching noise sometime in te rear soeakers... Im out of idea...
"Scratching" noise is caused by loose connection somewhere in the amp (inputs/outputs). Hiss is the noise floor of the amp just amplified over an acceptable level.

Some batch of PDX amps used to produce hiss at minimum gain/no audio. My personal solution for that was to replace that particular PDX amp. Problem solved.

Bad connection at the harness RCA will produce a different kind of noise, "scratching", pops, low volume level or simply no sound at that particular RCA/speaker output.
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