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Old 20th January 2013, 11:02 PM   #41
KoHo is offline KoHo  United States
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EV Baronet!!!
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Old 8th March 2013, 04:25 PM   #42
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As others have commented, these speakers seems beautiful and different from other horns. I did think they were "Hedlund-ish" and was thinking of building the Hedlunds. I have FE206EN's (Qts .19) so I am intrigued by your design. The Acousta Horns look slightly simpler to build. In the video they are setup in free space so there is no corner loading and because they're hanging no floor contact. It's hard to discern the bass response...
Can you suggest how to modify the Fostex so that the back end of the magnet can exist outside the cabinet. How did you seal the back of the Lowther? Any other details would great.
BTW, when I tried to copy the image I got a picture of you come up....
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Old 9th March 2013, 03:33 AM   #43
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Quote:
Originally Posted by KoHo View Post
Hi, here my design, Zen Acousta.
Back loading horn with field coil Lowther drive.
My apologies for such a late entry. The speakers at BAF were extraordinarily
imaginative and beautiful.

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Old 9th March 2013, 05:53 AM   #44
KoHo is offline KoHo  United States
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Quote:
Originally Posted by faithintruth View Post
As others have commented, these speakers seems beautiful and different from other horns. I did think they were "Hedlund-ish" and was thinking of building the Hedlunds. I have FE206EN's (Qts .19) so I am intrigued by your design. The Acousta Horns look slightly simpler to build. In the video they are setup in free space so there is no corner loading and because they're hanging no floor contact. It's hard to discern the bass response...
Can you suggest how to modify the Fostex so that the back end of the magnet can exist outside the cabinet. How did you seal the back of the Lowther? Any other details would great.
BTW, when I tried to copy the image I got a picture of you come up....
Hi Faithintruth
My Zen Acousta just combine with Hedlund horn and Lowther Acousta, the bass are deeper, faster and less coloration.
As the picture, my field coil magnet are huge, 5'1/2inch wide, I made a wood adaptor and use blanket to seal the gap.
For other driver, you may make a wood box to cover the magnet, like Lowther Acousta as picture show.
Thank for watching!
KoHo
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Old 9th March 2013, 06:20 AM   #45
KoHo is offline KoHo  United States
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Default Hanging a soundboards

Very interesting simple testing about hanging a soundboards.
Finger tap, hanging are more frequency response than sitting on the floor.
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Old 9th March 2013, 06:21 AM   #46
KoHo is offline KoHo  United States
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Quote:
Originally Posted by Nelson Pass View Post
My apologies for such a late entry. The speakers at BAF were extraordinarily
imaginative and beautiful.

Thank you very much Nelson!!!
Are those wood phase plug working OK with your field coil magnet?
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Old 9th March 2013, 06:52 AM   #47
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Quote:
Originally Posted by KoHo View Post
Very interesting simple testing about hanging a soundboards.
Finger tap, hanging are more frequency response than sitting on the floor.
Thinking about suspending 'em ?
Which is different than hanging
( which is different also from a person holding something )

hint: 10 rubber bands per side , 5 at the top and 5 at the bottom , all attached to a frame may be bouncing a little ...
I should try the gum strips which are used for replacing the weights ( for bodybuilding...) in the stretch exercises .
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Old 9th March 2013, 09:35 PM   #48
KoHo is offline KoHo  United States
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Another kind of Art Expression
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Old 11th March 2013, 04:35 PM   #49
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Hello Koho,
Thanks for explaining things a little more. I'm a little stuck on how the FE206EN will be stuck out the back. It's probably my inexperience, but the sound off the back of a speaker is important. Is the air coming off the back of the cone more important/useful...this part of your field coil is contained within the "compression chamber" area of the horn.
Thanks for the diagram from the original acousta horn. It clearly shows the magnet has an escape hatch below it which seems to indicate something valuable.

Still, I'd like to try this! If anyone out there has tried it with the FE206en please share!

Thanks, Sean
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Old 12th March 2013, 03:24 AM   #50
KoHo is offline KoHo  United States
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Quote:
Originally Posted by faithintruth View Post
Hello Koho,
Thanks for explaining things a little more. I'm a little stuck on how the FE206EN will be stuck out the back. It's probably my inexperience, but the sound off the back of a speaker is important. Is the air coming off the back of the cone more important/useful...this part of your field coil is contained within the "compression chamber" area of the horn.
Thanks for the diagram from the original acousta horn. It clearly shows the magnet has an escape hatch below it which seems to indicate something valuable.

Still, I'd like to try this! If anyone out there has tried it with the FE206en please share!

Thanks, Sean
Hi
The depth of FE206En is 3"1/2
And the depth of Zen Acousta throat area is total 3"3/4 (drive section).
Look like just make a one piece of 1/2 ply to cover the magnet area hole.

Last edited by KoHo; 12th March 2013 at 03:33 AM.
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