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The return of the JBL 2226H parabolic horn
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    Posted: 05 January 2021 at 9:12pm


Edited by more10 - 05 January 2021 at 10:09pm
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Points: 55 		Post Options Post Options   Thanks (0) Thanks(0)   Quote more10 Quote  Post ReplyReply Direct Link To This Post Posted: 05 January 2021 at 9:14pm
A few years back I built a parabolic horn with JBL 2226. It worked well so I have continued working on such designs. 

I got a request from a guy in Canada, so I used my improvements on a new drawing.
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Points: 83 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JulianDA Quote  Post ReplyReply Direct Link To This Post Posted: 05 January 2021 at 9:52pm
It seems like the ":" after "https" went missing in your link ;)
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Points: 55 		Post Options Post Options   Thanks (0) Thanks(0)   Quote more10 Quote  Post ReplyReply Direct Link To This Post Posted: 05 January 2021 at 10:05pm
Originally posted by JulianDA JulianDA wrote:

It seems like the ":" after "https" went missing in your link ;)

Thanks Julian. Fixed. The interface is a little bit odd :-)


Edited by more10 - 05 January 2021 at 10:09pm
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If you want access to the cad file you need to download from diyaudio.com. The file type is not allowed here.
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Would you care to render a few pictures? Some of us don't have access to cad software......
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Rendered without showing bracing:


Rendered from side, hiding side panels and hatch. 






Edited by more10 - 17 January 2021 at 12:33pm
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Points: 55 		Post Options Post Options   Thanks (0) Thanks(0)   Quote more10 Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2021 at 12:31pm
ID=48.20
Ang=1.0 x Pi
Eg=44.72
Rg=0.50
Fta=0.80
S1=342.98218512322376
S2=467.7506735940702
Par=19.45
F12=0.00
S2=467.7506735940702
S3=720.7643021103546
Par=61.02993684957077
F23=0.00
S3=685.3662642846632
S4=1705.7321646634698
Par=146.94596085027817
F34=0.00
S4=1705.7321646634698
S5=2200.0
Par=88.5
F45=0.00
Sd=880.00
Bl=19.2
Cms=1.59E-04
Rms=5.0
Mmd=84.56
Le=1.75
Re=5.30
OD=1
Vrc=163.45596867425678
Lrc=50.00
Fr=100.00
Tal=4.00
Vtc=5818.343510452398
Atc=1012.2290069682654
Pmax=100
Xmax=5.0
Path=0.0
Mass=0.00
Re'=0.00
Leb=0.00
Le=0.00
Ke=0.00
Rss=0.00
Rms=0.00
Ams=0.00E+00
Fr1=0.00
Fr2=0.00
Fr3=0.00
Fr4=0.00
Tal1=100
Tal2=100
Tal3=100
Tal4=100
Comment=JBL 2226 parabolic 4 sections
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
FILTER
      0   0.01    0.0     -1      0   0.01    0.0     -1      0   0.01    0.0     -1
      0   0.01    0.0     -1      0   0.01    0.0     -1      0   0.01    0.0     -1
 3200   25    0    0
  40.50.50.5
0.50.50.50.5
SSSS
0111
1011
0022
0111
111 
000
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Previous post is the Hornresp record
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My old prototype. 
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Points: 1651 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bob4 Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2021 at 9:37pm
Thank you! Interesting stuff! 

Probably benefits from stacking mouths together....
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