Question about Hifonics XX-Zeus Car Audio Amplifier

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Car AMP from subs making noise and only from AMP

When car stero is on or off the amp from subs make a low wine noise. It will go away if I like push or tap the amp itself...

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Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question

ou may have damage to the circuit board in the amplifier. If it is a whining sound it could be coming through the subs without you realizing it. Are your RCA cables and power cables separated from each other by at least 18 inches?

Posted on Nov 21, 2014

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  • Master
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There may be a cracked solder joint on the main PCB.
also - check the wiring.
There should be no noise if the radio is off.
When it's on - remove the RCA cables... and see if the noise persists.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Posted on Dec 11, 2009

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Hello markwasicki,

You did not specify what type of enclosure the subs are in or if they share the same airspace. But the sound you describe sounds suspiciously like the enclosure is at fault and not the sub itself.

Remove and reverse the subs in the box and test for the noise again. If the noise is still produced on the same side of the box, it's the enclosure. If the noise follows the sub, then you have a problem with that sub.

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