Originally Posted by willise
Are you doing an AT screen with the speakers behind it? Or are you using the Da Lite as you mentioned? My screen from the other room will only give me about 8" clearance on either side in the new room, not enough room for the L and R speakers. So I have been looking into hiding them behind the screen.
By the way, it looks great so far!
Thanks for the props! As the interesting, dedicated HT parts start to kick in, I'm glad to get a good discussion going on the specific challenges of small-space, low headroom theaters in this thread.
I ran into the same issue with screenwall width - because my room is also long relative to wide, I wanted to use at least 7' for the screen, leaving me with only 6" of side clearance, clearly not enough for L/R. I'm also a firm believer in keeping LCR as close together as possible in the vertical plane. Paradigms especially sound best lined up properly as they can be a bit tempermentally directional sometimes.
Which led me to think about an AT screen, but other problems prevented me from going this route.
If you add the depth of the speakers, plus sufficient clearance for rear porting, plus treatments, plus the recommended air space behind the AT screen - you end up wasting well over 2 feet, which was unacceptable to me, as it severely impacts the spaciousness of the room, and brings the screen too close to both the projector location and seating area. Some folks don't mind, but I don't particularly enjoy sitting 8' away from an 84" screen - I much prefer about 35 degrees of viewing angle. My other consideration was that I had already purchased Da-Lite HCCV fabric which is of course non-AT.
The solution I ended up with can clearly be seen in this photo - the speakers will be wall-mounted in the false area immediately underneath
the screen (they're not mounted yet obviously):
The front edge of the framing is about 12" out from drywall and will be GOM-on-frame to minimize depth, with the (non AT) screen itself recessed behind the face slightly so that the actual projection surface is only 10" out from the real wall. This maximizes the perceived visual size of the room as well as the available distance for projector throw.
For the lower third, I'm going to build a deeper GOM panel (box) enclosing an additional 4" bumpout beyond the face of the screenwall framing. This 16" is just enough depth for OFI-48 (1"), the Omnimounts (4"), the depth of the Paradigm Atoms (9"), and then an inch or two of air before you hit the fabric. Although they look low, this positioning tight to the bottom of the screen actually puts the tweeters fairly close to ear level (just slightly under) when seated. The Omnimounts can be tilted slightly upward to compensate.
An additional benefit of doing a big, deep detachable panel is that the whole thing can be removed for easy access to the speakers, subwoofer, and pretty much the whole false area without disturbing the screen.
Looking at the finished screenwall, the overall effect should be a very shallow shadowbox with a slightly deeper bottom panel, similar to those used by the big IB subwoofer guys. I believe there are several examples of this in the screenwall thread, and I think it looks quite classy.