Ford Mustang Forum - View Single Post - shaker 1000 trouble with aftermarket head unit.
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post #2 of (permalink) Old 08-30-2014
percy072
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Check what the voltage output is on that new HU, and see if there is a max input voltage on the OEM amps. Sounds like you could have too high an input signal going to the amp at higher volumes.

Also...does the new head unit have any crossover filters?? They are low impedance woofers...not subs and if a full range signal is sent to them, they are playing beyond their designed FR specs.



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