mrazandrewm Posted May 5, 2015 Author Report Share Posted May 5, 2015 Grounding, input power voltage, or input signal voltage. Check input voltage like I said, if that's good, unplug RCA's from amp and attach positive lead to center pin on your RCA's and ground lead on a bare metal ground and measure AC voltage as you turn it up to the point where it usually cuts out at. Most amps can only intake up to 5VAC. Will do. Thanks. Vehicle: 2013 Ford F-150 STX SuperCab 5.0L V8 4x4 BIG 3: Knukonceptz Kolossus Fleks 0 Gauge OFC Power Amp Kit Headunit: Stock (Leaving factory look) Speakers: Stock Subwoofer: Incriminator Audio Lethal Injection 10" D2 wired down to 1 ohm Enclosure: ~1.5 cubic feet tuned to ~34 Hz (Port Area ~24 inches) Amplifier(s): Sundown Audio SAE1000.1D Amp Power Kit: Knukonceptz Complete 4 Gauge OFC Amplifier Installation Kit Link to comment Share on other sites More sharing options...
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