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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => Installed Sound/Contracting => Topic started by: Roger Talkov on August 14, 2019, 06:25:14 PM

Title: Todays mystery speaker is?
Post by: Roger Talkov on August 14, 2019, 06:25:14 PM
All,
Anyone recognize this guy (attached)?
Title: Re: Todays mystery speaker is?
Post by: David Allred on August 14, 2019, 08:39:12 PM
 Guess removed. Not even close.
Title: Re: Todays mystery speaker is?
Post by: MikeHarris on August 15, 2019, 02:35:54 AM
Might this be a EV ?
Title: Re: Todays mystery speaker is?
Post by: Keith Broughton 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.
Title: Re: Todays mystery speaker is?
Post by: David Allred 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.
Title: Re: Todays mystery speaker is?
Post by: MikeHarris on August 15, 2019, 11:00:05 AM
it is a 2 way...the flat area covers a 12".You may be right...JBL
Title: Re: Todays mystery speaker is?
Post by: Robert Healey 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.
Title: Re: Todays mystery speaker is?
Post by: Roger Talkov 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. 
Title: Re: Todays mystery speaker is?
Post by: Joseph D. Macry 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.
Title: Re: Todays mystery speaker is?
Post by: Keith Broughton on August 15, 2019, 02:37:37 PM
JBL used to make a speaker like that but I can't be sure if that's it.
Maybe this one?
https://www.worthpoint.com/worthopedia/jbl-model-4660-special-design-speaker-250493712 (https://www.worthpoint.com/worthopedia/jbl-model-4660-special-design-speaker-250493712)
Title: Re: Todays mystery speaker is?
Post by: Art Welter on August 15, 2019, 02:57:06 PM
Maybe this one?
https://www.worthpoint.com/worthopedia/jbl-model-4660-special-design-speaker-250493712 (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..
Title: Re: Todays mystery speaker is?
Post by: Keith Broughton 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.
Title: Re: Todays mystery speaker is?
Post by: Ivan Beaver 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----------
Title: Re: Todays mystery speaker is?
Post by: Keith Broughton 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.
Title: Re: Todays mystery speaker is?
Post by: Ivan Beaver 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