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01-26-2007 Post mapped to one branch of Knowledge Tree
jessie.dazzle


Paris, France
Posts 456
Joined on 04-23-2006

Post #: 1
Post ID: 3558
Reply to: 3558
Make Your Own Horns
The following link will take you to images showing my construction method for small to medium-sized horns (click on the images... to view the explanations) :

http://s172.photobucket.com/albums/w3/jessie-dazzle/400Hz%20Tractrix%20Horn/

Since these are the first horns I've ever made, my main interest was in proving out the process ; it was to be a sort of test... For the horn in the images, I obviously used Romy's upper MF horn (the work of John Haskins) as a model.

I will add photos showing construction of the larger horns (including a pair of 45Hz Bass horns) once I get far enough into them to make a good series.

jd*


How to short-circuit evolution: Enshrine mediocrity.
01-26-2007 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,283
Joined on 05-28-2004

Post #: 2
Post ID: 3559
Reply to: 3558
Phenomenally simple, effective and wonderful!

Jessie, absolutely wonderful. 

Dima used the very same techniques to build his own MF horn. BTW, I made in past a prototype horn with similar idea that ended up disasters because of my stupid “willingness”. While I was applying plaster I spared led shorts across (got then in gun store) the wet plaster. So, the frame was very thin and I over apply the led shorts… as the result when the plaster was 70% applied it got too heavy for my frame and it collapsed…. I remember I was laughing like crazy….

After your horn will dry and you will do the final finish then do not forget to finish it properly. I was taught and I confirmed this fact with my own experiments that the finishing of the upper skin of the horn has very large influence to the MF sound, in fact even more crucial then some aspects of the horn itself. When I say “finish” I mean nether the sexy look, nether glossy shine, nor the utilitarian approach of unfinished horns (which in fact never sound good). I mean the finishing should have specific sonic merit. Contact John and he will tell you about his techniques, I learned from him and now I very much evangelist of his approach.

Rgs, Romy

PS: BTW, if you wish I might pull the imaged off the public image hosting and put them in my web server (it will be less amorphous)


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
01-26-2007 Post does not mapped to Knowledge Tree
jessie.dazzle


Paris, France
Posts 456
Joined on 04-23-2006

Post #: 3
Post ID: 3560
Reply to: 3559
Texture and Consistency
Romy,

Thanks for your comments. My plan is to seal the horns once I get them all (all 8 of them) to the "ready-for-finish" state (still a lot of work to do). At that point I will try contacting John.

In the mean time, I've acquired very solid reference points with regard to the ideal texture and consistency of bagels.†

Please feel free to pull in the images (let me know if you would rather I send them to you directly).

jd*

† A reference to one of Romy's previous posts regarding the ideal finish for a horn... See it here :

http://www.goodsoundclub.com/TreeItem.aspx?PostID=103


How to short-circuit evolution: Enshrine mediocrity.
Page 1 of 1 (3 items) Select Pages: 
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Vitavox’s S2 Survival Guide...  S2 Diaphragm Types...  Horn-Loaded Speakers Forum     117  702950  07-16-2004
  »  New  Problems with horns: mid-range horns...  First or second order for 1" driver....  Horn-Loaded Speakers Forum     8  58549  07-21-2004
  »  New  Musique Concrete horns..  Electricity and different compression drivers’ diaphrag...  Horn-Loaded Speakers Forum     5  60436  06-12-2007
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