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Old 14th January 2012, 08:08 AM   #11
janikol is offline janikol  Russian Federation
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Quote:
Originally Posted by Helmuth View Post
15 inch woofers, xo passive
this 4 х "Eminence ALPHA-15A"?
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Old 14th January 2012, 08:45 AM   #12
Helmuth is offline Helmuth  Netherlands
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Quote:
Originally Posted by janikol View Post
this 4 х "Eminence ALPHA-15A"?
You could those to. Simulate it in hornresp.
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Old 14th January 2012, 09:17 AM   #13
janikol is offline janikol  Russian Federation
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ALPHA-15A works up to 200Гц, all that is higher a dirty
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Old 14th January 2012, 09:30 AM   #14
Helmuth is offline Helmuth  Netherlands
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Hi Janicol,

Here a simulation of the alpha 15A. With corner placement even 96dB 1wmtr 26Hz -3dB is possible. Simulation shows 1Phi placement .
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File Type: png Schermafbeelding 2012-01-14 om 11.25.59.png (22.7 KB, 720 views)
Attached Files
File Type: txt alpha15a.txt (390 Bytes, 29 views)
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Last edited by Helmuth; 14th January 2012 at 09:33 AM.
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Old 14th January 2012, 09:39 AM   #15
Helmuth is offline Helmuth  Netherlands
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This efficiency and sub-low in this compact design and low group delay, low phaseshift is unique. Only stupid people build a onken.

This design doesn't use the eminence alpha 15a
Click the image to open in full size.
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Last edited by Helmuth; 14th January 2012 at 09:48 AM.
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Old 14th January 2012, 09:46 AM   #16
janikol is offline janikol  Russian Federation
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It not news... It is impossible to allow alpha 15A to reproduce a vocal

Quote:
Originally Posted by Helmuth View Post

This design doesn't use the eminence alpha 15a
What it is dynamics?

Last edited by janikol; 14th January 2012 at 09:55 AM.
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Old 14th January 2012, 09:51 AM   #17
Helmuth is offline Helmuth  Netherlands
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It not news... It is impossible to allow alpha 15A to reproduce a vocal
It will be the challenge to get a source 300Hz -20kHz up with a high efficient full-range, even nicer a compression driver.
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Old 14th January 2012, 09:57 AM   #18
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Nice! Congrats.
After horns my next target will be some OB BASS!
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Old 14th January 2012, 10:29 AM   #19
Helmuth is offline Helmuth  Netherlands
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Quote:
Originally Posted by janikol View Post
It not news... It is impossible to allow alpha 15A to reproduce a vocal


What it is dynamics?
I can feel the punch. It is a efficiency effect IMO, dynamics is not direct to a horn related I am talking about low now.
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Last edited by Helmuth; 14th January 2012 at 10:34 AM.
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Old 14th January 2012, 11:19 AM   #20
Draki is offline Draki  Macedonia
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Nice!
What is the co point? And how much did you attenuate the CD? Resistors or autoformer?
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