Replaced with new components replaced protection circuit. Amp does power up but only 9640’s are with half signal. Audio is distorted. Need some help with further diagnostic on this amp…
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What kind of radio does this RockFord Fosgate amplifier have? High power or lower power head unit. The amplifier amplifies the exact replica of the head unit. So if you're on a premium sound that uses only single ended lower power head unit including factory amp, this will compound the problem even further. Starting off on the amplifier may be overlooking simple solutions first. Like why the distortion? From speakers.