Wiring problem, maybe??

[ace_800 5,000+ posts]

I've got a Zapco 4 channel that just got returned from Zapco with a clean bill of health, but whenever I hit a bump or something while driving my front comps cut out until I hit another bump. The rear speakers stay on so I know its not the amp. So are the speakers grounding out or what?

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[azimuth 5,000+ posts]

i'd check the wiring at the speaker or the crossovers for connection first. maybe the interconnects. if you are only running one set to the amp, the rears would cut out also though.