| Off topic - Poof [message #20193 is a reply to message #20191] |
Tue, 27 July 2004 03:40   |
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Wayne Parham
Messages: 18792
Registered: January 2001
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Illuminati (33rd Degree) |
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Man, I hate it when I'm writing a post and power goes out or something happens and I lose the post. Sometimes I put a lot in them, and if one gets lost after I'm nearly finished writing, it can be terribly frustrating. I've gotten to where if I'm writing more than a sentence or two, I do it in Wordpad and save along the way. When I'm done, I'll copy and paste it into a post. But as sure as I start a post thinking it will be short, then I get on a roll and think I've got a good one, poof, there's a power blip and it's gone to digital heaven. Sorry to make an aside about something as silly as this. I didn't want to derail your thread, but I do empathize with you on the lost post thing.
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| I am still on the Doubl;e Horn thing Re: Off topic - Poof [message #20197 is a reply to message #20193] |
Tue, 27 July 2004 12:52 |
lon
Messages: 760
Registered: May 2009
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Illuminati (2nd Degree) |
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Whelp, today I am not trying to paste links.
I was up too late trying to do that last night.
But I did find a double horn over at the full range driver
forum so you all can do this:
www.fullrangedriver.com -> Image Gallery -> ianssmall1 image
(it's in the last row)
It looks like Ian tried to have a hybrid like I mentioned
over in the thread on Voigts: the project is leaning backwards.
In a box with right angles this makes it look similar to one of the
new Ushers but I don't think I could ever live with something
that looks like it's been at the bar too long.
However, I think the slant side of a Voigt would not create
this precarious illusion.
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| Split-path horns [message #20199 is a reply to message #20189] |
Tue, 27 July 2004 14:17 |
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Wayne Parham
Messages: 18792
Registered: January 2001
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Illuminati (33rd Degree) |
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Klipschorns, LaScalas and Belles are all split-path horns. Some people call this a "W" fold, because the shape of the paths look like a "W" or an "M". In a Klipschorn, the two paths are laid on each side of the motor chamber and throat. Some designs have one path above the driver and the other below. But that's just a layout difference; The design is basically the same. Splitting the path means each can have smaller cross-section area. It is really an architectural device in that it allows the horn designer to layout the cabinet shape to suit his taste. The cross-section area of each path is added together at a given distance down the throat to determine total cross-section area. It can also be modeled as two small but identical horns driven by a common radiator, but the effect is the same, acting as a single horn. Another thing that splits the horn path is phase plugs. A phase plug is a device that splits the path into many segments. It is used to keep path lengths nearly the same from all points on the radiator into the throat. There are designs that use two different horns driven by a single radiator. These kinds of designs usually have two different flare rates and horn lengths, often with a smaller front-loaded horn and a larger rear-loaded horn. In this case, the two paths work at different frequency ranges.
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