Somewhere in the past Zilch i suspect had a look at using the 2380 horn in a vertical orientation. What are the pros and cons of this in a domestic situation ? The Project array does this so i suppose it must work.
The main reason i ask is that in a DIY project it would allow for a nice slim
cabinet. Just chucking ideas about.
Review the polar response curves and beamwidth patterns on the data sheet for the consequences of flipping it 90°: a narrower horizontal pattern and increased reflection off the floor and ceiling. Neither is inherently bad; it depends upon application.
There ARE horns made for vertical orientation, such as those from DDS used in stage monitors, and any horn with symmetrical dispersion such as PT-F1010, for example, may be rotated with lesser consequences.
With some research into the literature, I believe you'll find the dispesion pattern of the Project Array horn is different from more "standard" horns. Report and link what you discover on that score here, please....
I thought you had dabbled with this on one of your many development pathways, I think it was possibly the l200+ . I had a scour in the posts but could not turn it up.
My ponderings ran along the lines of Le 111 maybe 2 in the box with 2308 + driver and slot. Tall, 12" wide and as deep as needed.
For my money the Project array series look a bit wonk but the reports seem to suggest that they are xlnt sonically.
I shall see what i can find out...
[ The large Bi-Radial horn used on
the 1400 Array has a basic coverage
pattern of 80° horizontal by 80° vertical.
It provides proper loading to the 435Al-3
driver down to the 750Hz crossover
point. A smaller Bi-Radial horn is used
in the 800, 880 and 1000 Array systems.
It too has a basic 80°-by-80° pattern,
and allows crossover points of 900Hz
and above. In order to maintain similar
sound power characteristics between
the various systems, the crossover
frequency must be incrementally
higher for systems with smallerdiameter
low-frequency drivers.]
http://www.jbl.com/array_series/pdf_...rrayseries.PDF
The uhf is 60deg horizontal and 30 deg vertical.
My eyes may well be deceiving me but the pics look as if the horn is slightly assymetric in the vertical
Last edited by macaroonie; 04-15-2007 at 11:09 AM. Reason: adddenda
O.K., my recollection is correct then, regarding the PA dispersion patterns.
I never used (or tried to use) 2380 vertical. There are two DDS horns I have tried, worthy of pursuit for vertical application. Both use 1.5" exit drivers. One is 70° x 70°, and the other is asymmetrical, which could be very interesting to apply.
I'm not much liking what their website says currently, tho:
http://www.ddshorns.com
Inquire through distribution, maybe:
http://www.assistanceaudio.com/
How much does the Horn sale for on its own? I’m getting an idea!
It's come to my attention that DDS Horns has been acquired by a certain Japan-based manufacturer of Audio-to-Waverunners and all points in between.Originally Posted by Zilch
It's left some manufacturers left to scramble to find a new hi-end horn supplier.
Edgewound...JBL Pro Authorized...since 1988
Upland Loudspeaker Service, Upland, CA
Back in my dance club Install days we used the 2380 / 2385 horns in the vertical orientation for 2 reasons:
(1) The cabinets were flown well above the dance floor and getting HF coverage right underneath the cabs wasn't easy with the nominal 40 degree pattern.
(2) Since there were so many cabinets, and preserving some sort of L/R effect was desired, this allowed using many cabinets so the SPL could be kept high ( WHAT ).
Plus it made the wannabe installers scratch their heads..:o)
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