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MKB230 kick bin 2X12" FLH |
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dj-panoramix 
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Joined: 28 September 2005 Location: France Status: Offline Points: 462 |
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 Topic: MKB230 kick bin 2X12" FLHPosted: 06 February 2010 at 6:30pm |
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here is the new kick bin from Marc O., the MKB230...
2X12" in a front loaded horn, optimisation have been made on the RCF MB12G301 driver
there is 3 other drivers that can be use:
Beyma 12G40 RCF LF12G301 FaitalPro 12FH500
the link:
here it is:
  Edited by dj-panoramix - 06 February 2010 at 6:34pm |
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Disco Stu
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Joined: 03 March 2005 Location: United Kingdom Status: Offline Points: 2492 |
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Posted: 08 February 2010 at 11:17pm |
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Ooh now now now, you are so close to another design with that layout that it seems a shame not to mention the idea of porting the rear chamber into the throat of that horn.
JaKe on this forum has done this with a 15" and I believe managed to get quite a bit more output in the lower registers, I wonder if you can extend the cutoff of this horn by doing that. Stu
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All you need to know is:
Sensitivity + Power Handling - Power Compression = Max Output My acts: www.myspace.com/thebowiexperience www.myspace.com/scheisseelektronisches |
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SebP
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Posted: 08 February 2010 at 11:44pm |
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The rear chamber is closed. Look at the detail panel. Looks like a WSX.
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dj-panoramix
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Posted: 10 February 2010 at 2:30pm |
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i'm not the designer but i will try to give my own point of view:
it's a kickbin NOT a subass, so no reason to do that because the lowest frequency of this horn is allready low enough(70hz) to cross with most of the subass design.
by porting the rear chamber you will increase the group delay, get a worst phase response ....the only good thing will be the lower diaphragm displacement.
now if you want to play with the design and porting the rear chamber, do it and post the result.
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grec
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Posted: 11 February 2010 at 10:19am |
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will it work for double 10
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dj-panoramix
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Posted: 11 February 2010 at 2:55pm |
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with a lot of work yes, but i think it will not go that low. what do you have in mind ? wich driver ?i can try some simulation, send me link with the drivers spec.
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Disco Stu
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Posted: 11 February 2010 at 3:13pm |
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There is no point its already been done with the other design, it just seems a shame to have such a big and heavy box which doesn't really do much better than an HD15 on paper. I wonder why unless you need those specific dimensions you would build this box over an HD15? Stu
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All you need to know is:
Sensitivity + Power Handling - Power Compression = Max Output My acts: www.myspace.com/thebowiexperience www.myspace.com/scheisseelektronisches |
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dj-panoramix
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Posted: 11 February 2010 at 4:32pm |
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sorry but for me this mkb is much much better than hd15,
look here is a sim with mkb(grey) vs hd15pd154(black)
in 2PI for 1watt:
 in 0,5PI for 1watt:
 and here MKB(grey) vs HD215(black):
in 2PI for 1watt:
 in 0,5PI for 1watt:
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Disco Stu
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Posted: 12 February 2010 at 2:04pm |
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Your sim for the HD15 looks nothing like the original one
http://www.speakerplans.com/index.php?id=hd15horn Stu
Edited by Disco Stu - 12 February 2010 at 2:05pm |
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All you need to know is:
Sensitivity + Power Handling - Power Compression = Max Output My acts: www.myspace.com/thebowiexperience www.myspace.com/scheisseelektronisches |
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dj-panoramix
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Posted: 12 February 2010 at 2:31pm |
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if you look the sim he has made with the kappa you will see that the differance between my sim and the one you posted come from the driver(kappa vs PD156),
here's the hornresp sim with kappa driver(with the same HR input i used in my simulation with the pd156):
 and here's the one in your link:
 you still think that's it's nothing like the original ?
and if you look the graph posted on your link(with kappa and NOT PD driver) you will see that exactly the same thing as on my sim, after 150hz it's go down, and after 200hz it's go down very fast...so i will not say "nothing like the ..."
 now if you want i can make a sim with the kappa driver vs mkb(as the graph posted by dave look exactly the same as the one you posted in this link) ?? Edited by dj-panoramix - 12 February 2010 at 3:06pm |
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Disco Stu
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Posted: 12 February 2010 at 3:00pm |
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Thats fair enough I just wondered why the sims looked so different - if its down to the PD154 then thats fine.
Stu
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All you need to know is:
Sensitivity + Power Handling - Power Compression = Max Output My acts: www.myspace.com/thebowiexperience www.myspace.com/scheisseelektronisches |
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dj-panoramix
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Posted: 12 February 2010 at 3:13pm |
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but i agree mkb is a huge cab, but it can be split in half for more easy mooving/stacking, and what i like it's go very well high for a kickbin.
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Disco Stu wrote: