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Old 16th July 2006, 16:38   #1
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Unhappy plssss help

Hey guys i recently removed the stock blau hu given by GM in my optra with a pio FH-5000MP double din unit. from the day i got it installed whenever i increase the volume to more than 15 the max being 40 i hear jarring ,screaming,crap noises from the speakers.These noises were not there in earlier blau HU.The speakers have not been changed they are the ones which came with the car. why is this hapenning?
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Old 16th July 2006, 17:04   #2
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Set the HPF [high pass filter] on ur HU at about 80-100Hz.this will prevent low freq. sounds going to ur spkears which r not capable of handling those and thats why distortion of sound.
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