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Old 12th January 2013, 04:39 PM   #1291
Tytte71 is offline Tytte71  Norway
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I'm selfish and want SEOS18 1.4" with 0deg Also have 1.5" driver that is optimized for 0deg throat.
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Old 12th January 2013, 04:41 PM   #1292
jzagaja is offline jzagaja  Poland
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Radian 951? I'll check angles at 1.5".
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Old 12th January 2013, 06:11 PM   #1293
Tytte71 is offline Tytte71  Norway
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Yupp, Be edition At the moment it is playing in a mock-up with E-OS15... Really nice WG and driver - I can recommend this combo!
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Old 12th January 2013, 08:31 PM   #1294
jzagaja is offline jzagaja  Poland
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Measuring with BK2012 is very fast - faster than ARTA. Just two buttons when delay is set. When done save as ASCII (by using autosequence). Polars are stored in 36 curves as Z-Axis. Excel 2007 must be used because older does not accept more than 256 columns

Below is resulting data for those who willing to try make a crossover: Mummy equipped with BC DE500 and 12B100R. Angles: 0,5,10,15,20,30,40,50,60,80,100,120,150,180.
Attached Images
File Type: png Mumia_DE500.png (109.9 KB, 328 views)
File Type: png Mumia_Impedancja.png (60.4 KB, 312 views)
Attached Files
File Type: zip Mummy_DE500_12B100R.zip (295.9 KB, 9 views)
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Old 12th January 2013, 10:16 PM   #1295
jzagaja is offline jzagaja  Poland
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Spreadsheet for sound power calculation of above data.
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File Type: png sound_power.png (10.2 KB, 304 views)
File Type: png sound_power1.png (83.6 KB, 300 views)
File Type: png sound_power2.png (69.4 KB, 296 views)
Attached Files
File Type: zip Sound Power.zip (177.5 KB, 5 views)
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Old 12th January 2013, 11:17 PM   #1296
NiToNi is offline NiToNi  United Kingdom
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Quote:
Originally Posted by jzagaja View Post
No with 7deg (14deg full) Should I set to 0 deg? Then it is difficult adopt both 1.4 and 1.5 inchers )
Yes, I am almost certain that the throat angle is almost zero degrees on the 951Pb but it would be great if someone could confirm the exact number. I think also the inner diameter is marginally greater that the outer.

This is great! So when can we order?
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Old 13th January 2013, 11:30 AM   #1297
Tytte71 is offline Tytte71  Norway
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Quote:
Originally Posted by NiToNi View Post
Yes, I am almost certain that the throat angle is almost zero degrees on the 951Pb but it would be great if someone could confirm the exact number. I think also the inner diameter is marginally greater that the outer.

This is great! So when can we order?
I don't have it confirmed by Radian or having a sectional drawing of the driver, but I tried to measure it without dismantling the bug screen. According to Guido Behringer the phase plug exit is Ř1.5". I measured 17mm from the exit to the phase plug. This implies a negative half angle of some 4deg.
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Old 13th January 2013, 06:54 PM   #1298
jzagaja is offline jzagaja  Poland
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Negative angle is worst thing because demoulding requires positive angle.
Attached Images
File Type: png Throat.png (71.3 KB, 122 views)
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Old 14th January 2013, 08:08 AM   #1299
Tytte71 is offline Tytte71  Norway
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Quote:
Originally Posted by jzagaja View Post
Negative angle is worst thing because demoulding requires positive angle.
Please don't blame me 0deg should be close enough?
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Old 14th January 2013, 08:10 AM   #1300
jzagaja is offline jzagaja  Poland
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Of course - we will make as close as 0deg as possible
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