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Old 21st June 2009, 04:09 AM   #1
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Default dual folded horn plans

Im still in the planning stages for an electrostatic set up, and of course as most of you know these require a seperate woofer due to design restrictions. Now i have space... but i dont know that ill have it in college and afterwards so i wanted to build something relatively small (electrostats can hang on the wall ).

I came across this
http://www.decware.com/newsite/wo32.htm

and where the design was given out for free.
I also found a forum post (which i didnt bookmark) of a guy who build a push pull version.

so anyway now to my question.
does anyone know of another set of free plans that already has the dimensions, angles, ect ?

Also has anyone heard one of these horns?
Do they benefit from being in push pull?

seems to me that since the convex side of the cones are moving they would drive less air.

Thnx
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Old 21st June 2009, 11:55 AM   #2
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That's not a horn, it's a bandpass box.
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Old 21st June 2009, 12:36 PM   #3
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To ask a stupid question ....How do you figure its a band pass box?
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Old 21st June 2009, 08:04 PM   #4
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he has prolly seen something like this
Click the image to open in full size.

but i find it hard to believe the guy who designed the enclosure could set out to make a dual folded horn and produce a bandpass box on accident. although horns are desighned to work within a set frequency so technically all horns are band pass
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Old 21st June 2009, 08:06 PM   #5
mhtplsh is offline mhtplsh  India
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How will u simulate this type of bandpass horn boxes?
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Old 21st June 2009, 09:02 PM   #6
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I just wish somebody would post measurements of this one - it's been around for years but I've never seen any....

If it is a horn then the mouth is far too small to be of any interest. If it's a 4th order BP with a flared port then it may well be of interest........ but I doubt it...

Rob.
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Old 21st June 2009, 09:04 PM   #7
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Quote:
Originally posted by bacon665
although horns are desighned to work within a set frequency so technically all horns are band pass
Technically all speakers are bandpass devices

Rob.
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Old 21st June 2009, 09:53 PM   #8
Mr Evil is offline Mr Evil  United Kingdom
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Quote:
Originally posted by RobWells


Technically all speakers are bandpass devices

Rob.
Not those fan subwoofers than have a response extending to DC
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Old 21st June 2009, 09:59 PM   #9
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And the top end ??

Rob
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Old 21st June 2009, 10:13 PM   #10
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Quote:
just wish somebody would post measurements of this one - it's been around for years but I've never seen any....

If it is a horn then the mouth is far too small to be of any interest. If it's a 4th order BP with a flared port then it may well be of interest........ but I doubt it...
Thats pretty much what i want is measurements or to find a similar design that has measurements (and thats free and not 600 by 400 inches)
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