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08-20-2013, 03:06 AM | #2 |
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Home or auto
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08-20-2013, 03:21 AM | #3 | ||
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Free air or enclosed?...
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08-20-2013, 03:24 AM | #4 |
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I need to build a 9.3 cu. ft. ported box (or two, ideally), with 3 4" ports, 25" long (which basically means they'll have to be curved). I think I can figure out how to do all that, but that makes the bracing WAY more complicated. That's where I'm in over my head, I think. |
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08-20-2013, 03:28 AM | #5 | ||
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Are you worried about figuring the footage for airspace or just the pain in the ass of angling the requirements for the shape you'll need?...
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08-20-2013, 03:31 AM | #6 | |
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What I need as finished product, though, is 9.3 cu. ft. of air, and 3 four inch ports 25.59" long, so that the box is tuned to 19.8 Hz. This is for an 18" home theater sub. |
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08-20-2013, 03:34 AM | #7 | |
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They make them professionally manufacture them now, but the starters of the company made Subs with Sonotube [the form for concrete footings] and wood endcaps, sub on one end and port at the other, then feet facing down one the sub endcap. Can be sized however you want, gussied up howe3ver you want, and tube design ameliorates need for bracing.
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08-20-2013, 04:15 AM | #8 |
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Thought about it, but I can't do a vertical enclosure (the driver would eventually sag), and a horizontal enclosure would stick pretty far out into the room.
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08-20-2013, 04:24 AM | #9 |
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Well, hmm . . . downloaded the Sonotune software for shits and giggles, and this one is telling me the sag is acceptable. WTF.
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08-20-2013, 04:30 AM | #10 |
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I guess the real question is where I can get a ****ing 22" Sonotube around here.
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08-20-2013, 05:18 AM | #11 | |||
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08-20-2013, 05:22 AM | #12 | ||
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That looks like an old M&K box that was TOTL in the mid 90's...
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08-20-2013, 05:58 AM | #13 |
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I'd estimate 7 footer.
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08-20-2013, 12:52 PM | #14 |
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08-20-2013, 01:20 PM | #15 |
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