Originally Posted by Tedd
Why would you even want to place your center channel down low, where the front row can block the audio to the second row? There's also a lot of small
things in such a space that really start to add up, and if you draw the room to scale, and your seating, you might find that front row is close to the room's
mid point where audio is a mess. Maybe you all are not audiophiles but that's also a very common line people use to justify cramming stuff in, and not looking
at a room from an audio standpoint. But good design can be a very inexpensive tool, and why not aim higher in the first place? And at the very least, the reasoning
behind "stuff", allows one to make informed choices when it comes down to making decisions on the compromises one will have to make.
The second row without any additional room depth, kind of rules out an AT screen, due to seating distances, and one seeing screen weave.
An AT screen would be the first tool I would reach for, when you can have depth, and then hide speakers/subs/bass traps, and other stuff. That's simply a tool
I would consider, if I could grab some more room depth, as in under that lower soffit. I did notice later, that you are using in wall speakers up front, but how small
is that screen going to be, if you have symmetrical posts, and need the speakers to be outside the screen edges? I would be looking to ideally have the speakers in a
horizontal line for the tweeters, and inside an AT screen's edges, with the screen and seating) centrally located on the room's width.
Either of those projectors would be very nice choices. Screen choice would be about what gain I would need, for the screen size, and all about cost and quality.
Some more time thinking through the design from your input, and also doing a bit more research on the benefits of a AT screen and having the LCR speakers lined up behind the screen, I've landed on bumping out the section in the unfinished basement about 20in behind the riser (there is some HVAC ductwork that restrict much more). I assume it wouldn't make sense to bump out the small section between the wall and post. This will allow for 2 key improvement, 1. Moving the 2 rows of couches back close to under the soffit (basically the the back of the couch will now extend an inch or so under the soffit area when reclined). Moving this back should help with the creating the distance needed for false wall AT in the front. 2. A better hide for the project tucked back under the soffit, throw distance 16-17 feet depending on the depth of the false wall.
For the false wall I do not need much space considering my LCR are Definitive 6.5 DI, which fit in a 3.5 frame. To match the columns on both sides, I'll need about 25 in on both sides, leaving me with 110 inches in the middle. Therefore I'd go with a 110, or 115 in screen (I realized the 115 might be a stretch). To create a uniform type shadow box, I would bump out the bottom section about 18-20 inches, which would also make room for the subs. The bump out would be framing, with trim and mostly fabric (in front of the bump out I am thinking a small stage look, with a stained wood look, to match the perimeter trim wood trim on my riser). This would give me 62 in of vertical space to support a 110-115in screen
With this approach I'd use around 6 inch for my false wall, thus landing my viewing distance from my first row around 12ft, and second row around 16.5 feet.
Moving this back a bit, and also reworking the riser calculator - I am going to up my riser to 10-11in. Which even at 6 foot 7 would leave me 2 inches after the ceiling is finished (which is about what I encounter in a portion in my basement with the bump down). Also it's not like anyone will be standing on the riser for long.
So with these new design assumptions:
-Do I eliminate weaver issue with an AT screen at these distance
-Are there any advantages to pushing my false wall out even more
-What are the guidelines for speaker placement behind the screen (tweeter at ear level of the best seat, and L and R as far to the left/right)?
Any other things to consider with this new design approach.