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<blockquote data-quote="Firewalker" data-source="post: 8765642" data-attributes="member: 676743">Okay looking at the settings set the subsonic 2-3hz below the box tuning. Turn the bass boost off on the amplifier no one uses that they use the head unit for that or a DSP. That unit has a nice 13 eq built in and time alignment. Set the LPF at 80 hz on the amplifier and head unit. That head unit allows you to turn up the gain on the subwoofer and adjust slope and what not.As I said you have an eq built in so you need to adjust that and stop using bass boost on the amplifier. Also what brand RCA&#039;s? If they are cheap with not a lot of shielding that may cause an issue as well. You say you have tried others but good quality ones do make a big difference.I do know that head unit is only 2v with what they call a 5 channel setup but that shouldn&#039;t cause any sound like you are talking about. This isn&#039;t one of those prebuilt enclosures is it with horns or anything built into it? Can you post a picture of your subwoofer box and what not as well? Just asking out of curiosity.Also some head units have in their subwoofer settings that you can set them to stereo or something like that. If it is set to stereo switch it that may end being that simple.</blockquote>

[QUOTE="Firewalker, post: 8765642, member: 676743"] Okay looking at the settings set the subsonic 2-3hz below the box tuning. Turn the bass boost off on the amplifier no one uses that they use the head unit for that or a DSP. That unit has a nice 13 eq built in and time alignment. Set the LPF at 80 hz on the amplifier and head unit. That head unit allows you to turn up the gain on the subwoofer and adjust slope and what not. As I said you have an eq built in so you need to adjust that and stop using bass boost on the amplifier. Also what brand RCA's? If they are cheap with not a lot of shielding that may cause an issue as well. You say you have tried others but good quality ones do make a big difference. I do know that head unit is only 2v with what they call a 5 channel setup but that shouldn't cause any sound like you are talking about. This isn't one of those prebuilt enclosures is it with horns or anything built into it? Can you post a picture of your subwoofer box and what not as well? Just asking out of curiosity. Also some head units have in their subwoofer settings that you can set them to stereo or something like that. If it is set to stereo switch it that may end being that simple. [/QUOTE]

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