Im looking for some quick/basic subwoofer box design guidelines/ideas. - Page 2 - diyAudio
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Old 14th April 2012, 02:49 PM   #11
tb46 is offline tb46  United States
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Hi 60ndown,

Maybe one of bjorno's T-TQWTs would fit the bill? V_net=13.8 L.

Regards,
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Old 14th April 2012, 04:29 PM   #12
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Originally Posted by tb46 View Post
Hi 60ndown,

Maybe one of bjorno's T-TQWTs would fit the bill? V_net=13.8 L.

Regards,
It would likely have the same over-excursion problems below Fb.
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Old 14th April 2012, 05:07 PM   #13
tb46 is offline tb46  United States
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Hi Brian,

He'll have to take care of the low-end excursion with a filter anyway. For the BP4 the duct seems to get very long. Volvotreter's small TH may be another solution, it's not tiny, but would still qualify as portable (if one builds it with 1/2" plywood), at least it has a little more output.

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Old 14th April 2012, 06:14 PM   #14
tb46 is offline tb46  United States
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Hi,

One idea that may work is to use the woofer in a small closed box, and connect a large value series capacitor; see Tony Gee's example and write-up:

http://www.humblehomemadehifi.com/do...20Box_copy.pdf

Regards,
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Old 14th April 2012, 06:21 PM   #15
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Originally Posted by tb46 View Post
Hi,

One idea that may work is to use the woofer in a small closed box, and connect a large value series capacitor; see Tony Gee's example and write-up:

http://www.humblehomemadehifi.com/do...20Box_copy.pdf

Regards,
That actually might work well.
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Old 14th April 2012, 09:54 PM   #16
bjorno is offline bjorno  Sweden
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Quote:
Originally Posted by tb46 View Post
Hi 60ndown,

Maybe one of bjorno's T-TQWTs would fit the bill? V_net=13.8 L.

Regards,
Hi Oliver,

I have a tad larger suggestion:

b
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Old 15th April 2012, 09:19 PM   #17
OscarS is online now OscarS  United States
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Originally Posted by 60ndown View Post
although im reasonably sure removing the port/s and making the box a little smaller would also solve my issues?

sealed subs are good right ?
Everything is a trade-off. You need to be more specific as to what size is a boom-box. For me a boombox is any enclosure smaller than 30 ft^3
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