A Compression Driver Flat From 10 kHz - 20 kHz |
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Elliot Thompson
Old Croc Joined: 02 April 2004 Location: United States Status: Offline Points: 5175 |
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Posted: 14 August 2017 at 5:49pm |
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That horn loses all its UHF once mounted on a baffle. And of course, the Compression Driver plays a factor. Here is the same horn using a low grade compression driver not attached to a baffle. Best Regards, Edited by Elliot Thompson - 14 August 2017 at 5:52pm |
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Elliot Thompson
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doller
Young Croc Joined: 19 July 2014 Location: japan Status: Offline Points: 509 |
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curved. so i guess expo. My mistake. always learning. thanks djk.
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_djk_
Old Croc Joined: 23 November 2004 Location: United States Status: Offline Points: 6002 |
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Is the side wall curved, or straight?
Conical would be straight. |
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djk
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doller
Young Croc Joined: 19 July 2014 Location: japan Status: Offline Points: 509 |
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My home made one next to the selrnium. should i be calling it a symetrical axis expo? I just know it sounds far better. Need to work on the mouth in the mk3 version. this is mk2. lots more sanding to do.
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_djk_
Old Croc Joined: 23 November 2004 Location: United States Status: Offline Points: 6002 |
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"looks exponential not conical or event tractrix"
Technically it is an axis-symmetrical exponential horn. (it was easier to call it a conical) |
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djk
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snowflake
Old Croc Joined: 29 December 2004 Location: Bristol Status: Offline Points: 3122 |
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Imagine you will get loads of throat distortion at any sort of volume. table in Olson says a 600Hz 1" horn will produce 10% distortion playing a 1W 12kHz signal. exponential horns are objectively pretty useless for sound reinforcement but a surprising number of people are used to this terrible sound and just interpret it as what things sound like when loud. |
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doller
Young Croc Joined: 19 July 2014 Location: japan Status: Offline Points: 509 |
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That is the same as the selenium hl 14 25.( as you all know) Really it sounds gash. outside you can get away with it.About. But it has no uhf atall. What does come out is so compressed it's hard work to listen too. Made in mexico.
I just should point out that here we have no real options. No 18 sound or beymer anything good needs importing. |
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snowflake
Old Croc Joined: 29 December 2004 Location: Bristol Status: Offline Points: 3122 |
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looks exponential not conical or event tractrix: http://prvaudio.com/wp-content/uploads/2015/05/WG14-25_Datasheet.pdf |
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snowflake
Old Croc Joined: 29 December 2004 Location: Bristol Status: Offline Points: 3122 |
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snowflake
Old Croc Joined: 29 December 2004 Location: Bristol Status: Offline Points: 3122 |
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some drivers are designed to be more suitable for CD horn with less eq required e.g. http://www.faitalpro.com/en/products/HF_Drivers/product_details/index.php?id=502010110 http://www.faitalpro.com/en/products/HF_Drivers/product_details/index.php?id=502020173 not sure of the horn for the response curve of the first - it says 50*40 horn which isn't one of their horn range. the second one is measured on their 1.4" tractrix horn, for which the publish a directivity index plot and horizontal and vertical beamwidths. using those you should be able to calculate the response on a CD horn. |
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doller
Young Croc Joined: 19 July 2014 Location: japan Status: Offline Points: 509 |
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I have only read poor reveiws for the 220ti. I must admit that on the selenium horns I would agree. I have tried pretty much all of them. To me it just sounded harsh. I have made a conicle horn and what a difference. I now feel for the price it's OK. gets up much higher.
I do run them from 2500hz any lower is a bit nasty to me. |
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MarjanM
Old Croc Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7816 |
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No driver will be flat on a CD horn. Tractrix horn will be flattish on axis, not so much on the side.
With a cd horn you need to apply cd correction, problem solved.
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Marjan Milosevic
MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
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