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  #1  
Old 05-11-2014, 02:10 PM
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Default 4th order for single nsv1 15

going to be building this box for a single nsv1 15 in the trunk. any input on this design? numbers on the left are the ported side...


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Old 05-11-2014, 02:14 PM
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whats your sealed side and what are your goals with this?
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Old 05-11-2014, 03:21 PM
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sealed is 2cuft on the nose. goal is loud daily, and i have never tried a 4th order would like to give it a shot. magnet would be in ported end.
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Old 05-11-2014, 06:41 PM
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i would shrink the ported to 4 cubes, if not it may be too peaky for your liking
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Old 05-11-2014, 07:08 PM
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What kind of Fc does 2 cubes give you? 52hz is a bit on the higher end of what I would use for daily but it should still work.
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Old 05-11-2014, 10:31 PM
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looks like 2 brings me to 48.xx, would it be ok to tune say 40hz on the ported side if not lower to reach down?
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Old 05-12-2014, 10:59 AM
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The D2 NSv.1 in 2cu ft. is around 48-49 hz so adding polyfill in best situations 30% increase so .6cu ft. Increase should total 2.6cu ft. should give 46.xx hz, find your imp spike tune to it, DO NOT TUNE LOWER THAN SEALED RESONANCE because you will shred some surrounds!

Good Luck,

Kindest Regards.
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Old 05-12-2014, 11:03 AM
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Good Luck,

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^^^ hey hael what gives bro you cant change now
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Old 05-12-2014, 11:21 AM
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^^^ hey hael what gives bro you cant change now
Hi sir!

I'm really busy BRO, that's why I change lol,

Thank you for following me, I greatly appreciate it BRO!

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Old 05-12-2014, 11:30 AM
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So do I really need to go bigger sealed for it to get low? I know bigger is lower tuning but what is too big
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