Bypassing LP Filter on new Alpine PDX-M6 Subwoofer amplifier

[airman]

I just installed a new Alpine PDX-M6 sub woofer amplifier. It replaced my old Sony XM-D400PS sub woofer amp. Everything went OK however I not sure how to bypass the LP filter on the PDX-M6. there is no off switch on the unit to bypass the LP filter. I want to use the built-in LP filter and slope adjustments that are in my Head Unit which is a Pioneer AVIC-8000NEX. Does anybody out there know how to bypass the LP filter on the PDX-M6. Your prompt replies will be appreciated.

Thanks

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[LosIsATool 5,000+ posts]

Just set the amp lp higher than the head unit.