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Author Topic: Todays mystery speaker is?  (Read 1949 times)

Roger Talkov

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Todays mystery speaker is?
« on: August 14, 2019, 06:25:14 pm »

All,
Anyone recognize this guy (attached)?
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David Allred

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Re: Todays mystery speaker is?
« Reply #1 on: August 14, 2019, 08:39:12 pm »

 Guess removed. Not even close.
« Last Edit: August 14, 2019, 08:44:53 pm by David Allred »
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MikeHarris

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Re: Todays mystery speaker is?
« Reply #2 on: August 15, 2019, 02:35:54 am »

Might this be a EV ?
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Keith Broughton

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Re: Todays mystery speaker is?
« Reply #3 on: August 15, 2019, 07:05:31 am »

JBL used to make a speaker like that but I can't be sure if that's it.
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David Allred

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Re: Todays mystery speaker is?
« Reply #4 on: August 15, 2019, 09:39:59 am »

Might this be a EV ?
That was my guess.  EVI series, but none were horn only (nor had that curved flare).  So... I removed it.
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MikeHarris

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Re: Todays mystery speaker is?
« Reply #5 on: August 15, 2019, 11:00:05 am »

it is a 2 way...the flat area covers a 12".You may be right...JBL
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Robert Healey

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Re: Todays mystery speaker is?
« Reply #6 on: August 15, 2019, 11:38:13 am »

That was my guess.  EVI series, but none were horn only (nor had that curved flare).  So... I removed it.

The new version of the EVI (EVC-1122VI) has a curved horn:

https://www.electrovoice.com/product.php?id=2667

This would be my guess, but it looks a little too narrow based on EV's picture. Could be the perspective, though.
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Roger Talkov

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Re: Todays mystery speaker is?
« Reply #7 on: August 15, 2019, 12:18:06 pm »

I walked into a high school that is looking for a new rig and those were up in the ceiling.  They said they never worked. 
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Joseph D. Macry

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Re: Todays mystery speaker is?
« Reply #8 on: August 15, 2019, 01:02:14 pm »

I walked into a high school that is looking for a new rig and those were up in the ceiling.  They said they never worked.

"Those have never worked." Answer I get from lots of teachers who either didn't put in repair orders or had those repair orders ignored.
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Joseph Macry,
Austin, TX

Keith Broughton

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Re: Todays mystery speaker is?
« Reply #9 on: August 15, 2019, 02:37:37 pm »

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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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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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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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