Frugel-Horn Lite for 3" drivers - diyAudio
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Old 16th June 2015, 10:37 PM   #1
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Default Frugel-Horn Lite for 3" drivers

The 3rd in the series of small horns based on the Frugel-Horn Mk3 is the Frugel-Horn Lite aimed at supporting 3" drivers.

Designed to target the Fostex FF85wk, sims show that it should work with a wide range of 3" drivers (see drawings for those summed)

We built the original proto-type in early January with the FF85wKeN and have refined the design since then. As one would expect with 3" drivers bass extention is somewhat limited, but listening we were very impressed with bass reproduction. Comparing to more bass capable speakers, they produce the 1st harmonic very well, creating the illusion of deeper bass. This will satisfy many. Higher frequencies will depend on the driver used, with the F85wKeN they are very good.

Click the image to open in full size.

Click the image to open in full size.

With pressure on to get this out i worked on a basic set of drawings today (thanx David). Please contact me with any QC input.
http://www.frugal-horn.com/downloads...0v9-290615.pdf

Link updated 29-june-2015

Now with its own pages on Frugal-Horn.com http://www.frugal-horn.com/FHL.html

dave
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Old 17th June 2015, 02:10 AM   #2
xrk971 is offline xrk971  United States
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Ok, I see it if I download the PDF just not in the image in the post. The dimensions are very close to what I ended up at for the foam core homage.

http://www.diyaudio.com/forums/attac...mcore-plan.jpg

Last edited by xrk971; 17th June 2015 at 02:12 AM.
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Old 17th June 2015, 03:36 AM   #3
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Thank you for the plans. Going to have to add these to my list of near future projects.
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Old 17th June 2015, 06:26 AM   #4
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Quote:
Originally Posted by Mayuri View Post
do you reckon a TB W4-657 driver would work on this enclosure or would a bigger Frugal be better?
FH3 would be better.

dave
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Old 17th June 2015, 06:29 AM   #5
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Thank you very much for this new plans and especially for your efforts for this community. It's a pity that you guys are so far away for me.

Only thing that is curious to me, this build should run for the Aura NS3 as well as for an Fountek FE85. No criticism at this point, I got both drivers and will give this build a try

Need to leave work early today and buy some sheets of wood
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Old 17th June 2015, 06:34 AM   #6
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Quote:
Originally Posted by S4m View Post
Only thing that is curious to me, this build should run for the Aura NS3 as well as for an Fountek FE85.
Frugel-Horns have proven to be quite tolerent of faitly different drivers, adjustable damping is the key (reminds me i need to add a damping drawing).

3" drivers tend to cluster closer together spec wize so many should work.

dave
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Old 17th June 2015, 06:36 AM   #7
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Quote:
Originally Posted by S4m View Post
Need to leave work early today and buy some sheets of wood
Wood isn't needed; this FH is clearly thought for a carbon fiber execution due to the relatively little size
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Old 17th June 2015, 11:38 AM   #8
xrk971 is offline xrk971  United States
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FH3-inspired Foam Core Mini Build

And it looks like this:

Click the image to open in full size.

Last edited by xrk971; 17th June 2015 at 11:41 AM.
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Old 26th June 2015, 05:11 PM   #9
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Yup yup splendid
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Old 26th June 2015, 06:03 PM   #10
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Perhaps someone in Japan can build it out of rice paper and out-xrk971 xrk971
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