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Message: <blockquote data-quote="daboyfrumdabx" data-source="post: 7158977" data-attributes="member: 617760"><p>I believe you can change the setting for the second set of RCA outputs on your deck. I believe it can be set to "rear" or "subwoofer". If this is the case, set it to "rear", so that your 4 channel amp receives the proper signal for the rear speakers. Then on your sub amp, you'll just adjust the LPF(low pass frequency) to 85ish(somewhere around there) to cutout frequencies that should reach the amp. If you leave it set to "subwoofer", most of these frequencies are already cut out and they won't rear the 4 channel amp even though your rear speakers are capable of playing such frequencies.</p></blockquote><p></p>

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