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2x18" MEATGRINDER v2 (done!)

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Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Cyklist Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2009 at 8:41pm
bendy ply with expanding foam behind it to smooth it out? Embarrassed
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 13 September 2009 at 11:49am
Originally posted by mykey mykey wrote:

I would stop looking at graphs and be more concerned about the throat to mouth PASSAGE, that messy fold after the throat area doesn't look to good
 
if you want to see a perfect example of a throat exit to horn, look at Minimaxils Terra horn, SMOOTH as a bar of galaxy chocolate
 

I understand that your type of throat is nicer, but letterbox-type of throat gives less throat chamber volume with longer length of horn!
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Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tomschute Quote  Post ReplyReply Direct Link To This Post Posted: 13 September 2009 at 12:04pm
is the letter box as the WSX, i.e. expanding out....



be great to get some final dims / plans...

happy to cab up for you if you got sketches Smile
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Father-Francis Quote  Post ReplyReply Direct Link To This Post Posted: 13 September 2009 at 12:54pm
yes looks something like that,but it really canĀ“t be letterbox cause you drop the speaker in for the top , but you can do it with the Mk3
Music is the strongest form of magic.(+45 31879997)blakmanpro@gmail.com
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 13 September 2009 at 2:43pm
Originally posted by tomschute tomschute wrote:

is the letter box as the WSX, i.e. expanding out....

be great to get some final dims / plans...

happy to cab up for you if you got sketches Smile

yes....in MG218 v3 it's the same throat type, as in WSX


Edited by Amano - 13 September 2009 at 2:45pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 13 September 2009 at 2:49pm
Originally posted by tomschute tomschute wrote:



edit: sorry V3 - 2.83V


VERY!!! VERY SMOOTH! Clap and NICE!
try to model with open rear chamber Ap=500-1000
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Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CHAMPION Quote  Post ReplyReply Direct Link To This Post Posted: 13 September 2009 at 7:49pm
good project Thumbs Up
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 14 September 2009 at 12:48pm
MG218 v3 in 3d without front panel
Response SCOOP mode:

Response Folded Horn:

HR data for Scoop-mode:

for FH mode put Ap=0...

In scoop mode drivers will work in open air... It will be better cooling of them..


Edited by Amano - 14 September 2009 at 1:13pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tomschute Quote  Post ReplyReply Direct Link To This Post Posted: 14 September 2009 at 2:16pm
looking good!

Looking forward to some dims so I can get building!

Out of interest how do you make S5 = 7564.

I make 56.4 x 116.4 = 6565ish...


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 14 September 2009 at 2:56pm
it is phantom part of horn...
ok... put 6565 and see differences! Wink

real horn length of WSX is ~1.8meters, but 0.3m is phantom length
total length of WSX horn = 2.1m

in MG218 there is the same situation...




Finally, MG218 v3 in SCOOP mode has smooth response, extremely high sensitivity and good cooling for drivers... ... in theory...


Edited by Amano - 14 September 2009 at 3:09pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bitzo Quote  Post ReplyReply Direct Link To This Post Posted: 14 September 2009 at 3:09pm
what do you mean for phantom lenght?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tomschute Quote  Post ReplyReply Direct Link To This Post Posted: 14 September 2009 at 3:09pm
cool cool just hoped I handn't missed something!

So when you recon you'll have some plans out for the V3 Big smile Sorry just can't leave it alone!
Out to lunch... stableaudio@hotmail.co.uk
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