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View Full Version : Need some help designing an 8th order BP box.



GAM3OVR
05-19-2010, 07:35 AM
I Want to try a 8" sub in one of these boxes. My brain cannot wrap around doing 8th order though, so if anybody wants to help shoot me some pointers let me know.


thanks



cheers

TaylorFade
05-19-2010, 09:16 AM
Lol. Good luck getting any help with any BP, let alone an 8th order. Since it's just an 8, I would just make some **** up and start building. Or, at the very least, try an online calculator for a starting point. Let me know how it turns out. I might try one for one of my eD 3.6's today just for shits and giggles.

nateberrier
05-19-2010, 09:22 AM
sounds like a huge cluster[B]f[/uck of wood

GAM3OVR
05-19-2010, 11:37 PM
Yeah its pretty complicated. I was thinking about buying a dd1508 and trying to do something crazy with it.

GAM3OVR
05-20-2010, 12:18 AM
whos ready to helppp?

GAM3OVR
05-27-2010, 12:04 PM
????

cmftrading
05-27-2010, 03:36 PM
there is a website u could try 4 pointers its Car Audio Subwoofer Enclosures (http://www.the12volt.com/caraudio/boxes.asp) they have a lot of info on building enclosures

bobwires
05-31-2010, 12:35 PM
you were bashing audiodave in his thread, and here I see you want to build an '8th order' which doesn't even exist.... 6th order is a dual-reflex. WinISD is great software for designing boxes, and it's free.

Rawr-DQ
05-31-2010, 04:03 PM
^, I heard that WinISD doesn't work well for bandpasses, I recommend you get a copy of bass box pro.

chillin
05-31-2010, 08:47 PM
what do you mean 8th oeder doesnt exist? The port that comes out of the 6th goes into another chamber, which is ported to the outside.

profundus-sanus
05-31-2010, 09:23 PM
you were bashing audiodave in his thread, and here I see you want to build an '8th order' which doesn't even exist.... 6th order is a dual-reflex. WinISD is great software for designing boxes, and it's free.


8th order bandpass certainly does exist.

lsp cad can calculate it, if its still available anywhere. But it has a very steep learning curve. I've gotten frustrated and given up many times.

bobwires
06-01-2010, 06:39 PM
Huh. I've never heard them called '8th order', always a 'tri-port' Bose used to use them a lot way back in the day.

7th order has passive crossover added onto it, which I think is pretty stupid in a car.

profundus-sanus
06-01-2010, 09:19 PM
tri-port is a bose patent. iirc they own the commercially available 8th order.