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ground loop isolator
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<blockquote data-quote="maylar" data-source="post: 311277" data-attributes="member: 541144"><p>Uh.. no.</p><p></p><p>A ground loop isolator uses coupling capacitors that allow AC (audio) to pass, but block the DC path. A capacitor is also a hipass filter, depending on its value and the value of the impedance it sees as a load. Your case sounds a bit extreme, but it's quite possible to lose low frequencies through it if the load impedance you plug it into is low.</p><p></p><p>Try this:</p><p></p><p>Make your own ground isolators. Get a pair of short M-F RCA wires from RS. Cut them in half. Strip the insulation back, and reconnect the center wires but not the shield. Tape them up nice and secure.</p><p></p><p>That's what I'm using. It's only a partial isolator, since it doesn't isolate the HU preout driver impedance, but it's enough to kill most alternator whine without losing frequency response.</p></blockquote><p></p>
[QUOTE="maylar, post: 311277, member: 541144"] Uh.. no. A ground loop isolator uses coupling capacitors that allow AC (audio) to pass, but block the DC path. A capacitor is also a hipass filter, depending on its value and the value of the impedance it sees as a load. Your case sounds a bit extreme, but it's quite possible to lose low frequencies through it if the load impedance you plug it into is low. Try this: Make your own ground isolators. Get a pair of short M-F RCA wires from RS. Cut them in half. Strip the insulation back, and reconnect the center wires but not the shield. Tape them up nice and secure. That's what I'm using. It's only a partial isolator, since it doesn't isolate the HU preout driver impedance, but it's enough to kill most alternator whine without losing frequency response. [/QUOTE]
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ground loop isolator
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