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Car Audio Help
Wiring, Electrical & Installation
ground loop on high/speaker level input to amplifier
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<blockquote data-quote="darkblade382" data-source="post: 8387153" data-attributes="member: 665998"><p>well i am new here(but i do have audio and car audio experience)</p><p></p><p>i am seeking help for a problem.</p><p></p><p>i have installed a amplifier for a subwoofer in my car,</p><p></p><p>but i get alternator whine when i increase the engines rpm</p><p></p><p>i experienced this before (see below) so i knew this was a ground loop</p><p></p><p>current situation</p><p></p><p>the factory head unit does not have rca connections so,</p><p></p><p>my amplifier is connected to the high level from the rear speakers car.</p><p></p><p>the speaker wires(running on the right side of the car, where as the power and remote run left.) go into the high level input connector on the amplifier.</p><p></p><p>i isolated the amplifier as the loop's source.</p><p></p><p>i tried moving the ground but this did not help.</p><p></p><p>what can i do to fix this?</p><p></p><p>(below)</p><p></p><p>other audio devices in the car are: a car kit connected via a ground loop isolator(it had a ground loop too but it was low level, so i added a isolator and this fixed the problem) to a aftermarket aux unit ,that is in turn connected to the head unit.</p></blockquote><p></p>
[QUOTE="darkblade382, post: 8387153, member: 665998"] well i am new here(but i do have audio and car audio experience) i am seeking help for a problem. i have installed a amplifier for a subwoofer in my car, but i get alternator whine when i increase the engines rpm i experienced this before (see below) so i knew this was a ground loop current situation the factory head unit does not have rca connections so, my amplifier is connected to the high level from the rear speakers car. the speaker wires(running on the right side of the car, where as the power and remote run left.) go into the high level input connector on the amplifier. i isolated the amplifier as the loop's source. i tried moving the ground but this did not help. what can i do to fix this? (below) other audio devices in the car are: a car kit connected via a ground loop isolator(it had a ground loop too but it was low level, so i added a isolator and this fixed the problem) to a aftermarket aux unit ,that is in turn connected to the head unit. [/QUOTE]
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ground loop on high/speaker level input to amplifier
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