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Old 19th December 2010, 10:53 PM   #11
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YouTube - Frankie Valli-Stay just a little bit longer
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Old 21st December 2010, 10:36 AM   #12
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Probably 1.20 /1.25 M, and yet to be found, the best driver position along the line..
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Old 23rd December 2010, 12:58 AM   #13
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This is a rough sketch of the speaker we are talking about
Following the MJK tables, and the simulation results from bjorno I drawed a line a bit longer.
1.25m minus the boundary end correction is 1.15m
Driver SD is 530cm2, fs 100, Qts 1
The suggested offset is 0.349. but I'm Not sure if it means 1.15 X 0.349 as in my drawing..
Any suggestion is welcome
Cheers
J
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Old 23rd December 2010, 01:59 AM   #14
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Hi,

I simulated your design:

b
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Old 23rd December 2010, 09:51 AM   #15
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Thanks bjorno this is almost in the ball park of that I was looking for. Now I 'm trying to learn how to use the worksheets, in order to push the Lf limit some Hz down. I think that f3 around 75/80 Hz plus a soft HP slope will be Ok. The intended amplification are small tube units (SE) <5W, with moderate to low DF.
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