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Old 04-30-2013, 10:38 PM
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Default 6th order are the ports too close?

Quick design of a 6th for 1-10. My concern is are the ports too close to each other for a parallel 6th.

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Old 05-01-2013, 08:37 PM
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no opinions? i dont want to waste wood and time.
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Old 05-14-2013, 08:46 PM
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Somebody must know if this has been done. please help!!!
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Old 05-14-2013, 08:54 PM
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That's fine. The wavelengths at those frequencies are tens of feet long, the overall interaction between ports would be the same no matter where they are on the box.

edit: I'm interested to know how this design turns out. Those chambers are close to the same size and tuning is only .5 octave apart. I have a feeling you are going to unload that sub very easily.

Last edited by SPLEclipse; 05-14-2013 at 08:57 PM.
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Old 05-14-2013, 09:00 PM
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Quote:
Originally Posted by SPLEclipse View Post
That's fine. The wavelengths at those frequencies are tens of feet long, the overall interaction between ports would be the same no matter where they are on the box.

edit: I'm interested to know how this design turns out. Those chambers are close to the same size and tuning is only .5 octave apart. I have a feeling you are going to unload that sub very easily.

Idiot noob question: what do mean by unload? Is it good/bad? How would you make it better? I have lots of room to play with
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Old 05-14-2013, 09:08 PM
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If you don't know what unloading a sub is, I would suggest you try a different design. With the tuning so close and the rear tuned at only 38hz, the sub lacks the proper air "spring" behind it (well, behind or in front, depending on how you look at it) to keep it under control. That's for the most part a pretty educated guess, but you might want to research the design a bit more before building.
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Old 05-16-2013, 02:46 AM
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The port shouldn't just turn and then go out like that with a box that loads. That's a terrible design IMO.

If you want a 6th and you have lots of room, let me design one for you.
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