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Enclosure Design & Construction
PORT QUESTIONS Truck center console w/ dual opposed 12” NVX 20-25hz
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<blockquote data-quote="066" data-source="post: 8824023" data-attributes="member: 687517"><p>I hear you on power. How big of an alt does that Duramax have? Mines only 130, will likely be the next thing I upgrade. Stock dual batteries ftw.</p><p>I was surprised how much space the slot port takes. This is my first ported build, so I didn’t know what to expect.</p><p></p><p>I’m gonna play with the idea of downfiring. The low fs combined with the fact these speakers have grilles is why I went for this sub. I do have the grilles.</p><p></p><p>I know you don’t like this placement but can we expand a little on dual opposed? It happens to be the best way I can think to utilize the space and I’m in favor of canceling box vibration. You say measure from center of box (or speaker cone?) to window (door panel okay?) and back to center of box to find the distance between speakers correct?</p><p></p><p>If I use the door panels and speaker cone as reference, I get about 10’ which seems would cancel</p><p> ~90 hz</p><p></p><p>If I use the center of box to top of window, I get about 13’ which seems would cancel ~75hz</p><p></p><p>I assume the answer is somewhere in the middle?</p><p></p><p>My Door speakers are 4x Kicker ds 6x9 and 4x Kicker ds 6x8 running on a JL M600/6</p><p></p><p>I’m thinking I might be able to fill that gap?</p></blockquote><p></p>
[QUOTE="066, post: 8824023, member: 687517"] I hear you on power. How big of an alt does that Duramax have? Mines only 130, will likely be the next thing I upgrade. Stock dual batteries ftw. I was surprised how much space the slot port takes. This is my first ported build, so I didn’t know what to expect. I’m gonna play with the idea of downfiring. The low fs combined with the fact these speakers have grilles is why I went for this sub. I do have the grilles. I know you don’t like this placement but can we expand a little on dual opposed? It happens to be the best way I can think to utilize the space and I’m in favor of canceling box vibration. You say measure from center of box (or speaker cone?) to window (door panel okay?) and back to center of box to find the distance between speakers correct? If I use the door panels and speaker cone as reference, I get about 10’ which seems would cancel ~90 hz If I use the center of box to top of window, I get about 13’ which seems would cancel ~75hz I assume the answer is somewhere in the middle? My Door speakers are 4x Kicker ds 6x9 and 4x Kicker ds 6x8 running on a JL M600/6 I’m thinking I might be able to fill that gap? [/QUOTE]
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PORT QUESTIONS Truck center console w/ dual opposed 12” NVX 20-25hz
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