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<blockquote data-quote="T3mpest" data-source="post: 6456413" data-attributes="member: 560148">Turn your lpf up higher.&nbsp; A ported box does not effect the upper end frequency response of a sub in a negative way.&nbsp; As a matter of fact you gain output above the tuning frequency for a good half octave or so.&nbsp; Above that it acts just like a sealed box.&nbsp; The only reason it seems less is because you have so much more low end ouput masking the upper range, which in most rock music shouldn&#039;t be alot.&nbsp; Turn up your LPF and if you have an eq drop the 30-40hz region as much as you can.&nbsp; IF not try sealing the port off with clothes or something see if it helps.&nbsp; The subs will roll off pretty fast in a sealed box, which is why it isn&#039;t recommended, but since you want balanced output, that&#039;s not a bad thing.&nbsp; If you like the sound you may want to seal it off permanently or get a port plug.Also changing the way your box is facing may help.&nbsp; In my caddy if I don&#039;t face the box towards my trunk lid I lose all output above 60hz.&nbsp; Heck, if you in a trunk you may find getting output up to 80hz to be hard anyway as the higher in frequency you go the easier it is for the frequencies to be trapped in your trunk.</blockquote>

[QUOTE="T3mpest, post: 6456413, member: 560148"] Turn your lpf up higher. A ported box does not effect the upper end frequency response of a sub in a negative way. As a matter of fact you gain output above the tuning frequency for a good half octave or so. Above that it acts just like a sealed box. The only reason it seems less is because you have so much more low end ouput masking the upper range, which in most rock music shouldn't be alot. Turn up your LPF and if you have an eq drop the 30-40hz region as much as you can. IF not try sealing the port off with clothes or something see if it helps. The subs will roll off pretty fast in a sealed box, which is why it isn't recommended, but since you want balanced output, that's not a bad thing. If you like the sound you may want to seal it off permanently or get a port plug. Also changing the way your box is facing may help. In my caddy if I don't face the box towards my trunk lid I lose all output above 60hz. Heck, if you in a trunk you may find getting output up to 80hz to be hard anyway as the higher in frequency you go the easier it is for the frequencies to be trapped in your trunk. [/QUOTE]

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