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<blockquote data-quote="Dbraves8" data-source="post: 8737262" data-attributes="member: 682411">I&#039;ve got this static/white/floor noise on a fusion 4 channel marine amp on 4 kicker 8s. Not sure what to do. This is in a boat.I&#039;ve got ground less than 18 inches from amp to battery. Ground from radio to amp ground. Rcas are separated from power and ground runs. Backing gains down helped a little but to eliminate it then I&#039;d need my gains at zero essentially. Im using 35 out of 40 on max volume for headunit and setting them with a 1khz test tone at 24.5 volts. 150rms at 4 ohms. I tried doing it using 30 max volume but then I had to use more gain and got more noise from speakers.My ground from radio was at 2 different places and it didn&#039;t change anything. I moved rcas away from all the other wires. It does not get louder with volume just constantly stays the same.Tested switching input from radio rcas to using a 3.5mm to rcas for sending signal from phone or BT adapter straight to amp. Noise pretty much gone vs running signal from radio rcas. So I&#039;m guessing issue with rcas from radio??</blockquote>

[QUOTE="Dbraves8, post: 8737262, member: 682411"] I've got this static/white/floor noise on a fusion 4 channel marine amp on 4 kicker 8s. Not sure what to do. This is in a boat. I've got ground less than 18 inches from amp to battery. Ground from radio to amp ground. Rcas are separated from power and ground runs. Backing gains down helped a little but to eliminate it then I'd need my gains at zero essentially. Im using 35 out of 40 on max volume for headunit and setting them with a 1khz test tone at 24.5 volts. 150rms at 4 ohms. I tried doing it using 30 max volume but then I had to use more gain and got more noise from speakers. My ground from radio was at 2 different places and it didn't change anything. I moved rcas away from all the other wires. It does not get louder with volume just constantly stays the same. Tested switching input from radio rcas to using a 3.5mm to rcas for sending signal from phone or BT adapter straight to amp. Noise pretty much gone vs running signal from radio rcas. So I'm guessing issue with rcas from radio?? [/QUOTE]

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