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<blockquote data-quote="Jeffdachef" data-source="post: 8717001" data-attributes="member: 650438">no wonder you get no lows. Your subsonic is way too damn high. Thats in the upper 30s range not 27, you are literally cutting out all the bass. Bring that all the way down to the 10 o clock position. No bass boost should be used at all. Low pass put it at the 12 o clock position.&nbsp; Now onto your head unit, if you have an aftermarket head unit, set low pass filter to 80hz.&nbsp; Volume of the head unit should be 90%, subwoofer level should be maxed.&nbsp; No bass boost at all on the head unit. EQ should be flat on the bass.&nbsp; Now lower your gain on the amp and play your hardest hitting song, raise the gain until it stops getting louder and then back it off slightly. If you have a stock stereo and line out converter, thats a huge red flag issue as well. Stock stereos have built in high pass filters that cut out all the bass signals to protect shitty stock speakers.&nbsp; When you try to boost this non existent signal all you get is a weak trash signal that doesn&#039;t amount to anything. Signal and tuning is extremely important. They can make a good woofer sound like flea market trash.</blockquote>

[QUOTE="Jeffdachef, post: 8717001, member: 650438"] no wonder you get no lows. Your subsonic is way too damn high. Thats in the upper 30s range not 27, you are literally cutting out all the bass. Bring that all the way down to the 10 o clock position. No bass boost should be used at all. Low pass put it at the 12 o clock position. Now onto your head unit, if you have an aftermarket head unit, set low pass filter to 80hz. Volume of the head unit should be 90%, subwoofer level should be maxed. No bass boost at all on the head unit. EQ should be flat on the bass. Now lower your gain on the amp and play your hardest hitting song, raise the gain until it stops getting louder and then back it off slightly. If you have a stock stereo and line out converter, thats a huge red flag issue as well. Stock stereos have built in high pass filters that cut out all the bass signals to protect shitty stock speakers. When you try to boost this non existent signal all you get is a weak trash signal that doesn't amount to anything. Signal and tuning is extremely important. They can make a good woofer sound like flea market trash. [/QUOTE]

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