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12" kick bin |
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enpe 
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Joined: 31 March 2010 Location: walthamstow e17 Status: Offline Points: 68 |
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 Topic: 12" kick binPosted: 30 July 2010 at 9:16am |
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hello everybody, was wonderin if any one can help me with some small 12" kick bin plans? i want to incorporate into a midrange box so the smaller the better
thanks alot
jake
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SebP
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Posted: 31 July 2010 at 4:59am |
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http://hornplans.free.fr/mkb230.html It's a double Kick Bin , but you can easily transform to single.
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asaa00
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Posted: 31 July 2010 at 7:43am |
I was looking at this.. has anyone heard this? |
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vzummer
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Posted: 12 September 2010 at 5:02pm |
same question, any comments on the sound?.. Edited by vzummer - 12 September 2010 at 5:04pm |
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_djk_
Old Croc 
Joined: 23 November 2004 Location: United States Status: Offline Points: 5992 |
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Posted: 12 September 2010 at 7:04pm |
  Design by Bill Woods. |
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djk
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vzummer
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Posted: 13 September 2010 at 9:46am |
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the drawing doesn't match nor with the photo neither with MKB-230 .....
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_djk_
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Posted: 13 September 2010 at 11:17am |
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"the drawing doesn't match nor with the photo neither with MKB-230 ....."
Of course not, it's a different design. The photo is the plan shown, plus corner reflectors. Overall depth is 20.75", inside width is 13.5" I'll wager you it will work much better than half of the MKB-230, and be much easier to construct too. |
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djk
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darkmatter
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Posted: 13 September 2010 at 12:28pm |
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DJK I've noticed you post that Bill Woods design before and it looks great. Interesting that it doesn't show any measured problems in the frequency response at 250Hz (1/4 wave of 250Hz is 13.5" / 34.29cm). Do you think it could be used up to 300Hz comfortably?
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_djk_
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Posted: 14 September 2010 at 12:10am |
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It looks like it should be pretty good to 400hz, gets a bit 'crunchy' above there.
One could try adding a septum down the middle of the path, a fiberglass ceiling tile should work.
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djk
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SebP
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Posted: 14 September 2010 at 6:45am |
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"I'll wager you it will work much better than half of the MKB-230"
I don't think it will be better. MKB-230 seems to have an exponential horn with a wave guide like the martin cabinet. One MKB-230 eats two HD15 all the days, see the comparative sim between MKB and HD15 http://hornplans.free.fr/mkb230.html |
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bitzo
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Posted: 14 September 2010 at 8:46am |
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there's also a visaton cab 2x12" with similar folding. and a doubled version of that 4x12"
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_djk_
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Posted: 14 September 2010 at 2:39pm |
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"I don't think it will be better. MKB-230 seems to have an exponential
horn with a wave guide like the martin cabinet. "
Exponential horn? The talk was to build a half sized version, half the mouth area, a 6dB loss in the 100hz region. The Bill woods design has a hyperbolic mouth, much better for low frequencies, no huge cavity in front of the driver. I see no waveguide, a couple of dinky ramps after a huge rectangular cavity. "One MKB-230 eats two HD15 all the days, see the comparative sim between MKB and HD15" An absolutely poor example of a dual 15 cabinet.  A good example of a single vs a dual 15 cabinet (actually one in 2Pi vs 4Pi). "It's a double Kick Bin , but you can easily transform to single." Run a sim in 4Pi with only one driver, I think you will want something better. |
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djk
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SebP wrote: