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Author Topic: Todays mystery speaker is?  (Read 1979 times)

Art Welter

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Re: Todays mystery speaker is?
« Reply #10 on: August 15, 2019, 02:57:06 pm »

Maybe this one?
https://www.worthpoint.com/worthopedia/jbl-model-4660-special-design-speaker-250493712
That's it!

I thought it was the JBL 4660 rather than the EV Variable Intensity, found Keele's AES paper describing it:
http://www.xlrtechs.com/dbkeele.com/PDF/Keele%20(1983-10%20AES%20Preprint)%20-%20Horn%20Covers%20Flat%20Rectangular%20Area.pdf

The horn's look led to it being associated with a derogatory term for a female anatomy part that did not contribute to it's market acceptance..
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Keith Broughton

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Re: Todays mystery speaker is?
« Reply #11 on: August 15, 2019, 05:13:17 pm »

I installed a few in churches and they work OK down to about 1.5k then the pattern goes to crap.
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I don't care enough to be apathetic

Ivan Beaver

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Re: Todays mystery speaker is?
« Reply #12 on: August 16, 2019, 04:53:00 pm »

I installed a few in churches and they work OK down to about 1.5k then the pattern goes to crap.
It takes SIZE to have pattern control.

Something that most of the industry has "forgotten" or doesn't care about, or doesn't understand.

As long as the spec sheet says a "pattern" many (I would argue-most) people believe that the loudspeaker has that pattern across the entire operating range.

Just look at how many "rotatable" small horns there are.

But the customer is "always right", at least in their mind----------
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A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

Keith Broughton

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Re: Todays mystery speaker is?
« Reply #13 on: August 17, 2019, 07:10:29 am »

I have learned to add "at what frequency(s)" to any mention of pattern when looking at loudspeaker specs.
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Ivan Beaver

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Re: Todays mystery speaker is?
« Reply #14 on: August 19, 2019, 03:20:21 pm »

I have learned to add "at what frequency(s)" to any mention of pattern when looking at loudspeaker specs.
Where did you learn that from?  wink wink nod nod
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A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

ProSoundWeb Community

Re: Todays mystery speaker is?
« Reply #14 on: August 19, 2019, 03:20:21 pm »


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