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Old 3rd March 2006, 04:42 PM   #1
badman is offline badman  United States
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Talking My Tempest

http://photobucket.com/albums/e347/pothaudio/?

Here are some pics of my Tempest sub. 15" driver with dual 8 ohm V.C.s. Sealed box, app. 5 ft^3 after bracing and driver volume are removed. 40 oz. polyfill. The little black stuff is a dab or two of "black hole 5" for the little unbraced spans getting near the top on 2 sides. A lot of fiddling to get the 'pressure fit' technique I wanted to use with the bracing to work, but it's very strong now. Driving it with the Apex Sr. plate amp www.apexjr.com but using a separate enclosure for that.

It's by far the biggest sub I've built or had extensive experience with, and my initial listening (movies, I was feeling naughty and just wanted boom, didn't hear music) was very positive.

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Old 3rd March 2006, 11:26 PM   #2
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interesting bracing...looks good though. My first DIY was a tempest in a 220L ported enclosure. are you going to apply a finish or leave as is?
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Old 3rd March 2006, 11:41 PM   #3
Glowbug is offline Glowbug  United States
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Nice!

I have its little brother (the Shiva) in a 1.5cF sealed enclosure, and it definitely has the potential to wang when called upon
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Old 4th March 2006, 12:01 AM   #4
badman is offline badman  United States
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Need4speed,

I intend to put a finish on it. But for now, it'll have to suffice unfinished. I'm not a tremendously good finisher yet though, have only finished 3 pairs of speaker cabinets before, though I've built (and left unfinished) many more than that. The cold weather and massive size of this mean: a finish will have to wait 'til spring

Glowbug, yeah, it definitely 'wangs'
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Old 4th March 2006, 12:43 AM   #5
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same thing happend to me...i was anxious to hear mine, so i put it all together and didnt finish it...with the intent of going back and applying veneer...never happend...2 yrd later its still raw mdf

enjoy it...
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Old 4th March 2006, 02:56 AM   #6
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by need4speed
same thing happend to me...i was anxious to hear mine, so i put it all together and didnt finish it...with the intent of going back and applying veneer...never happend...2 yrd later its still raw mdf

enjoy it...

Just because it does not have a finnish, it will still sound good.

Build it and play with it.
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Old 4th March 2006, 05:21 AM   #7
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Default Re: My Tempest

Quote:
Originally posted by badman
A lot of fiddling to get the 'pressure fit' technique I wanted to use with the bracing to work, but it's very strong now.[/B]
What is this pressure fit technique?
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Old 4th March 2006, 05:58 AM   #8
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Quote:
Just because it does not have a finnish, it will still sound good.
no one said anything to the contrary...as a matter of fact thats exactly what i said
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Old 4th March 2006, 02:56 PM   #9
badman is offline badman  United States
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Pressure fit is just that- the braces are cut in such a way that without glue they'd hold in place well, just by pressure. Requires a lot of fiddling to make it work, but I like the results that can be achieved that way.
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