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<blockquote data-quote="VWBobby" data-source="post: 7052678" data-attributes="member: 624844"><p>Another thing that can happen is bad brushes can introduce noise into the system. The regulator smooths most of the voltage spikes out, but the slight ripple it causes makes a hum, especially if you test it with an AM radio. An old trick is to put capacitors on every electric motor to kill the noise at the source.</p><p></p><p>Its always a good idea to route any wires away from your RCAs.... Anyone who's worked with guitar or pro audio has heard what happens when you introduce noise into a preamp.... While your power is DC, any RF or EMI that is near your input cables can be amplified quite a bit on a 500-watt or higher system, resulting in noise/hum.</p></blockquote><p></p>
[QUOTE="VWBobby, post: 7052678, member: 624844"] Another thing that can happen is bad brushes can introduce noise into the system. The regulator smooths most of the voltage spikes out, but the slight ripple it causes makes a hum, especially if you test it with an AM radio. An old trick is to put capacitors on every electric motor to kill the noise at the source. Its always a good idea to route any wires away from your RCAs.... Anyone who's worked with guitar or pro audio has heard what happens when you introduce noise into a preamp.... While your power is DC, any RF or EMI that is near your input cables can be amplified quite a bit on a 500-watt or higher system, resulting in noise/hum. [/QUOTE]
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