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Super Bass Horn V.02 by Startec (Quad Acoustics-F)

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_djk_ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote _djk_ Quote  Post ReplyReply Direct Link To This Post Posted: 01 November 2008 at 9:39am

You just need to manipulate Vtc and Vrc until you get the smoothest resonse.

If you examine the perspective view of this design, you will see a large cavity in front of the woofer before it opens into the throat. This gives a much more uniform load across the cone, and the cavity gets rid of the dip a half-octave above the Fc of the horn.

 
(design by Bill Woods)
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mykey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 01 November 2008 at 1:14pm
Ye DJK, this is exactly what i did with the Brute 45, also added the 'BOWL' to smooth out things also
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mykey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 01 November 2008 at 1:14pm
very impressed by the way DJK
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Deadbeat View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Deadbeat Quote  Post ReplyReply Direct Link To This Post Posted: 01 November 2008 at 1:24pm
djk, where do you find all the Bill Woods designs?

I've erased some of my collection by accident. Is there a repository somewhere as opposed to having to search audioasylum under RCA-fan?

That the Tempest design, BTW?

Thanks.


Edited by Deadbeat - 01 November 2008 at 1:25pm
Away on extended leave.
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mykey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 01 November 2008 at 1:32pm
is that not DJK's then?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Deadbeat Quote  Post ReplyReply Direct Link To This Post Posted: 01 November 2008 at 1:40pm
See the bottom of djk's post.

Bill Woods, ex Yorkville, now in his own business 'Acoustic Horn'
Posts in audioasylum under 'rca-fan'
Away on extended leave.
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mykey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 01 November 2008 at 2:58pm
Dohhhhh!!!!
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_djk_ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote _djk_ Quote  Post ReplyReply Direct Link To This Post Posted: 02 November 2008 at 5:41am

All of Bill's links are dead because he hosted them at AA, and it's a paid service.

I only have a few saved to my hard drive, this one, a 70hz Hypex, and the rear-load horn with the Karlson slot. He has re-posted the later at his AH! site.
 
The Tempest woofer is a 15" similar to a Lab 12 driver.
 
Here is a graph comparing one of the above design, two of the above, and a double 18 reflex box.
 
 
Note the solid response to 40hz, and no dip.


Edited by _djk_ - 02 November 2008 at 11:04am
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Deadbeat View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Deadbeat Quote  Post ReplyReply Direct Link To This Post Posted: 02 November 2008 at 9:27am
Thanks. I'll look around at TDA's site now as well - remember him having some of them as well.
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_djk_ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote _djk_ Quote  Post ReplyReply Direct Link To This Post Posted: 02 November 2008 at 11:04am
Just the one above (I think).
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Niila View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Niila Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2008 at 10:11pm
What woofer would best suit the Bill woods Tempest horn (the last plan shown)? The same rcf as the superbasshorn?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Deadbeat Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2008 at 10:18pm
Maybe try finding a driver with similar parameters to the Tempest - details available at the Adire library.

Same size would be a good start. Wink
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