When intelligibility is most critical is often when the pattern may also be the most critical. You may not worry as much about the pattern at the extremes of the response but throughout the speech range the pattern may indeed be important. You might want to look at something like some of the EAW UB series products or other 'under balcony' speakers that are designed for horizontal mounting. Be aware that if you use a nominal vertically oriented box in a horizontal orientation with the horn rotated then rotating the horn can change the interactions of the horn with the woofer through crossover and can result in a different and typically not identified horizontal pattern at those frequencies.
Thanks mike, that relieves my fear of getting hem close to the ceiling. These look like a good solution. Do the i's sound as similar to the Zx1A's that everyone has been raving about? I assume they use the same drivers.
Mark,Have you considered that you likely have a fair amount of space above the T-Grid Ceiling? I've been thinking about that a little bit and I think you could rig the back end of your box above the grid and have just the face of the speaker below the grid. We work with grid ceilings all the time and, at least here, I could get my grid guy to patch it all up and work the ceiling tiles around the speaker for a couple hundred bucks. Just a thought, you may not be on as tight of a space constraint as you thought...
I went back to the room today to refine some measurements. A new floor plan is attached.Basically, hanging anything between the projector and the screen isn't going to work, we need to use the top inches of the screen.Also, the beams that cut the room in thirds are 12" thick, so the ceiling at those locations is down from <9' to <8'. Hanging on the beams (i.e. a 12" cabinet would hang down to 7') isn't really going to work in this multipurpose room.In the diagram below I've shown a 3 90-degree speaker solution as an example. Two horizontally mounted 'big speakers' to cover the left and right sides of the rooms and one smaller speaker to cover the hole in the middle. We have a couple 5" Tannoy speakers that sound amazingly good and might be useful as the center sections fill(s), although matching tonality may be a challenge..
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