Hello, (long time listening & learning) Looking for some help/advice. Have just had installed PXA-H800 Alpine Sound Processor + RUX-C800 Controller PAD 5000.5 Polk Audio 5 Channel D Class Amp DB 6501 & DB 651 Polk Audio Speakers MM840DVC Polk Audio 8" Sub Stinger 9ft Pro3 2CH RCA TDJ Audio Level Con...