Super Bass Horn V.02 by Startec (Quad Acoustics-F) |
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_djk_
Old Croc Joined: 23 November 2004 Location: United States Status: Offline Points: 6002 |
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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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djk
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mykey
Old Croc Joined: 18 August 2005 Location: UK/Indonesia Status: Offline Points: 9680 |
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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
Old Croc Joined: 18 August 2005 Location: UK/Indonesia Status: Offline Points: 9680 |
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very impressed by the way DJK
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Deadbeat
Old Croc Joined: 12 March 2008 Location: Singularity Status: Offline Points: 3167 |
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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 |
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Away on extended leave.
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mykey
Old Croc Joined: 18 August 2005 Location: UK/Indonesia Status: Offline Points: 9680 |
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is that not DJK's then?
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Deadbeat
Old Croc Joined: 12 March 2008 Location: Singularity Status: Offline Points: 3167 |
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See the bottom of djk's post.
Bill Woods, ex Yorkville, now in his own business 'Acoustic Horn' Posts in audioasylum under 'rca-fan'
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Away on extended leave.
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mykey
Old Croc Joined: 18 August 2005 Location: UK/Indonesia Status: Offline Points: 9680 |
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Dohhhhh!!!!
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_djk_
Old Croc Joined: 23 November 2004 Location: United States Status: Offline Points: 6002 |
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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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djk
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Deadbeat
Old Croc Joined: 12 March 2008 Location: Singularity Status: Offline Points: 3167 |
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Thanks. I'll look around at TDA's site now as well - remember him having some of them as well.
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Away on extended leave.
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_djk_
Old Croc Joined: 23 November 2004 Location: United States Status: Offline Points: 6002 |
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Just the one above (I think).
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djk
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Niila
New Member Joined: 13 November 2008 Status: Offline Points: 4 |
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What woofer would best suit the Bill woods Tempest horn (the last plan shown)? The same rcf as the superbasshorn?
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Deadbeat
Old Croc Joined: 12 March 2008 Location: Singularity Status: Offline Points: 3167 |
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Maybe try finding a driver with similar parameters to the Tempest - details available at the Adire library.
Same size would be a good start. |
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Away on extended leave.
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