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What would be a good size for a "Smith-Selsted style" tweeter horn? drivers ? vanes ?


karlson3
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The original 1" format "Smith Horn"  imo. is an excellent sounding piece (especially with mono rigs).  For size and for 3 way applications,.  the "Smith Selsted" horn is intriguing. 

 

FWIW I might pick a horn height 00.7" and a B&C DE07 as the driver.  Maybe DE10 - - -  I'm not sure what size the horn might be made or what might happen if the dividing "vanes" are omitted.

 

Do you guyz have any thoughts on how you would make this style horn?  If not too large then could be economically 3D printed.

 

It would look cool sitting on top of a 1 inch format Smith Horn (as shown in the original article)

 

http://www.audioheritage.org/vbulletin/showthread.php?12697-Walnut-Smith-Selsted

 

 

http://www.audioheritage.org/vbulletin/showthread.php?9871-Smith-Selsted-Tweeters

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Bob Smith's "Distributed Source Horn" was one inch high with no vertical expansion, and featured in the January 1951 issue of "AUDIO ENGINEERING" magazine. 

 

Tho considered antiquated by today's art, it can be quite "musical"  -  part of that is from being extremely well camped from thick^ construction plus the bracing effect of the vanes.

 

((*  whomever built my set of Smithhorns used 3/4" dense plywood for the top and bottom plates and that

was a good idea)

 

JUnD3bl.jpg

 


Johk8gN.jpg

"

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Is this too far in the weeds?

 

Wouldn't the vanes create some comb filtering issues?

 

I suppose the answer has to be no but it just strikes me that you have a number of side by side 'sources' and (on some level at least?) it could lead to that.

 

How far off base am I (since my technical prowess is only quasi-exceptional)  :ph34r2:

 

 

 

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they do create some mild (?) lobing IIRC - didn't see much deep stuff.  If there's still a graph of mine outdoors then would be in a nearly 20 year old pc.  I probably had that graph with Imageshack who deleted my files (I had a paid account too)

 

I don't know the size of these Westlake horns in the post linked below, but the smaller one was made without vanes -

 

 

http://www.audioheritage.org/vbulletin/showthread.php?5425-Westlake-HF-Horns&p=49859&viewfull=1#post49859

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Here's a modern version... the vanes were machined by a man in Canada, and he shipped them with MDF plates and side pieces. Luther made the solid wood pieces and a sold me the tops and bottoms.

 

Looking again (my stuff is in storage), he is using an LE85, which is a 1 inch throat driver... but I thought the parts of the horn ere for a two inch.

 

http://wardsweb.org/audio/Smith Horn/

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