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15' kick cabs
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Karlsonman3 View Drop Down
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Joined: 07 April 2012
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Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Karlsonman3 Quote  Post ReplyReply Direct Link To This Post Posted: 07 December 2012 at 8:26pm
27" tall by 20.5" wide by 13.5" deep - you may have to increase depth to clear the woofer's motor
rough sketch and input z



wings are a radial arc


Edited by Karlsonman3 - 07 December 2012 at 8:34pm
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midas View Drop Down
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Points: 2117 		Post Options Post Options   Thanks (0) Thanks(0)   Quote midas Quote  Post ReplyReply Direct Link To This Post Posted: 09 December 2012 at 10:51pm
Just out of interest. Could the wings be cut straight? Does it make a difference? 

Asking as they look fairly simple to construct, except the radial cut...
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Majestic View Drop Down
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Looks interesting. Is that your own design? What are the recommended drivers?
I have some volt radials that i would like to try out, maybe that would be a nice box for them?
Curved cuts with a decent jigsaw are easy enough, as long as you have a steady hand.

Edited by Majestic - 10 December 2012 at 3:18am
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TONY.A.S.S. View Drop Down
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It's a very old design coming out of the States I believe. Ohm copied it at one time and produced them. The shape does seem important. Whether it's better than anything else is another matter.
There was an HF horn following the same principle shaped like a needle. We used some many years ago building a few systems for Bill Kelsey when he was at TFA Electrosound.
http://www.facebook.com/tony.rossell.3
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TENSiON View Drop Down
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Originally posted by midas midas wrote:

Just out of interest. Could the wings be cut straight? Does it make a difference?

It seems to be essentially a band-pass design, where the effective volume of the front chamber varies with frequency (?). I also guess it only really affects the upper range, though there might be some evil magick at play.. who knows? Wink

In that regard, it probably can be cut straight, but a (slight) change in loading and frequency response has to be expected.. as one would expect from the difference between an exponential and conical horn Censored, for example.



Edited by TENSiON - 10 December 2012 at 9:17am
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Majestic View Drop Down
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Points: 1290 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Majestic Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2012 at 12:22pm
Originally posted by TONY.A.S.S. TONY.A.S.S. wrote:

It's a very old design coming out of the States I believe. Ohm copied it at one time and produced them. The shape does seem important. Whether it's better than anything else is another matter.
There was an HF horn following the same principle shaped like a needle. We used some many years ago building a few systems for Bill Kelsey when he was at TFA Electrosound.


Thanks Tony. I did dome research and the design is from the 1950's.
It looks like a simple design which could be built in a day. Not sure how it will sound, but it certainly looks good.
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Centauri View Drop Down
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Points: 1792 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Centauri Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2012 at 2:08pm
Yes, Karlson bin.  Member Freddi was very big into these (he hasn't been around here for over 12 months), and was full of knowledge on them.
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Subliminal View Drop Down
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Points: 279 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Subliminal Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2012 at 3:31pm
Originally posted by QSS QSS wrote:

ASS BS500 is the best sounding 15" I've heard on kicks andit will go up to 250hz easy without sounding honky. 
If its a box you want to build yourself then a ES15 (modified ES18) with the right driver would also do the trick. 
Not a lot of 15" kicks will play upto 250hz without sounding a bit honky.


+1
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boots-hifi View Drop Down
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Points: 2464 		Post Options Post Options   Thanks (0) Thanks(0)   Quote boots-hifi Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2012 at 6:54am
Turbo bph 115s pd loaded. Ive got 8 now and love em.
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