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<blockquote data-quote="Emvaz" data-source="post: 7751369" data-attributes="member: 640044">OK so I found the problem.&nbsp; The ground wasn&#039;t the issue because I used the same ground with my old amp and it never gave me problems.&nbsp; I checked my amp settings and the installer had turned on the ultrasonic filter on one of the amps...duh.&nbsp; After messing with the equalizer I was able to get a decent response from the 20-25hz range from the sub and also the 100hz range from the midbass (although I had to turn up the gains higher than I would like).That said, I&#039;m now having issues with dimming dash lights when the subs hit, and when they hit hard, I can hear some of the amp channels cutting out.&nbsp; Both amps also get extremely hot.&nbsp; It&#039;s looking like a battery is my best option, my questions are: do I run it isolated or parallel; would it be sufficient to just replace my stock battery with a large agm, or is it a better idea to run with two batteries?&nbsp; Parallel or isolated?&nbsp; What size batts?Thanks for the feedback so far,Michael</blockquote>

[QUOTE="Emvaz, post: 7751369, member: 640044"] OK so I found the problem. The ground wasn't the issue because I used the same ground with my old amp and it never gave me problems. I checked my amp settings and the installer had turned on the ultrasonic filter on one of the amps...duh. After messing with the equalizer I was able to get a decent response from the 20-25hz range from the sub and also the 100hz range from the midbass (although I had to turn up the gains higher than I would like). That said, I'm now having issues with dimming dash lights when the subs hit, and when they hit hard, I can hear some of the amp channels cutting out. Both amps also get extremely hot. It's looking like a battery is my best option, my questions are: do I run it isolated or parallel; would it be sufficient to just replace my stock battery with a large agm, or is it a better idea to run with two batteries? Parallel or isolated? What size batts? Thanks for the feedback so far, Michael [/QUOTE]

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