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Old 19th June 2012, 06:28 PM   #1
nites is offline nites  United States
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Default Rockford 500a2 Output DC Offset

This Punch 500a2 Amp has .12V Offset in Left Channel, Right Channel works fine with ~ 0DCV Offset. Left Side does play clean audio though.
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Old 19th June 2012, 06:38 PM   #2
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Did you measure both channels with the meter probes directly on the two speaker terminals for each channel?
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Old 19th June 2012, 06:41 PM   #3
uio is offline uio  United States
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Yes , L = .12VDC R = .002VDC
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Old 19th June 2012, 07:23 PM   #4
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The differential amplifier transistors would be the first components that would be replaced if the amplifier produces clean audio. They need to be from the same production batch so that they're closely matched.
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