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Car Audio Discussion
General Car Audio
Impossible Speaker Whine Issue
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<blockquote data-quote="EmpiricalApe" data-source="post: 8856211" data-attributes="member: 688568"><p>I apologize, but I am once again asking for assistance on this issue. I think I have tried everything I've been told.</p><p>System Rundown:</p><p>2002 Saturn L200</p><p>•Electrical is a powder coated mechman 260 amp alternator, battery is a XS Power D3400. I have 0 gauge ofc big 3</p><p>•Stereo is a JVC KW-M780BT </p><p>• Mids and highs Amplifier is a Infinity REF-3004A (8 ga ofc power and grounds, 14 ga ofc speaker wire) -- Sub amp is a Sundown SFB 3k (0 ga ofc power&ground, 10 ga speaker wire to sub)</p><p></p><p>After installing the Infinity mid amp I started having bad alternator whine come through the speakers. The whine does not change with stereo power, but does get louder with mid amp gain. I have the mid amp gains at minimum. The whine stops when unplugged from the amp. I've tried running different rcas, power, and grounds away from any other components and it doesn't change. I tried a new unit of the same stereo and the issue persisted. I have tried grounding the stereo through the harness and to the frame, as well as grounding all the components in the same location and also running a wire between all the separate grounds. Ive tried grounding the amp and stereo directly to the negative battery post. With the amp connected directly to my phone with an rca adapter there is no whine. I have tried different mid amps, different speakers. I've tried in line noise filters on the stereo power wire, and I've tried ground loop isolators on the mid amp. When I tried the ground loop isolator on the sub amp rcas that was the only results I got. The whine quieted down considerably, but not enough. Yet the whine will continue with the sub amp taken off the circuit. I would just deal with it that way, but with the ground loop isolator on the sub amp rcas, the gain and where it clips seems to become inconsistent.</p><p></p><p>Im sorry if everything is jumbled together, I'm starting to give up. I really appreciate you guys taking time to help me out on this issue so many times.</p></blockquote><p></p>
[QUOTE="EmpiricalApe, post: 8856211, member: 688568"] I apologize, but I am once again asking for assistance on this issue. I think I have tried everything I've been told. System Rundown: 2002 Saturn L200 •Electrical is a powder coated mechman 260 amp alternator, battery is a XS Power D3400. I have 0 gauge ofc big 3 •Stereo is a JVC KW-M780BT • Mids and highs Amplifier is a Infinity REF-3004A (8 ga ofc power and grounds, 14 ga ofc speaker wire) -- Sub amp is a Sundown SFB 3k (0 ga ofc power&ground, 10 ga speaker wire to sub) After installing the Infinity mid amp I started having bad alternator whine come through the speakers. The whine does not change with stereo power, but does get louder with mid amp gain. I have the mid amp gains at minimum. The whine stops when unplugged from the amp. I've tried running different rcas, power, and grounds away from any other components and it doesn't change. I tried a new unit of the same stereo and the issue persisted. I have tried grounding the stereo through the harness and to the frame, as well as grounding all the components in the same location and also running a wire between all the separate grounds. Ive tried grounding the amp and stereo directly to the negative battery post. With the amp connected directly to my phone with an rca adapter there is no whine. I have tried different mid amps, different speakers. I've tried in line noise filters on the stereo power wire, and I've tried ground loop isolators on the mid amp. When I tried the ground loop isolator on the sub amp rcas that was the only results I got. The whine quieted down considerably, but not enough. Yet the whine will continue with the sub amp taken off the circuit. I would just deal with it that way, but with the ground loop isolator on the sub amp rcas, the gain and where it clips seems to become inconsistent. Im sorry if everything is jumbled together, I'm starting to give up. I really appreciate you guys taking time to help me out on this issue so many times. [/QUOTE]
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Impossible Speaker Whine Issue
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