Looking to get an ultra short throw projector. The room is a large room, windows in the back with blinds - the windows face the southeast so only get sunlight directly in them in the morning hours. The wall is big enough for a 150" screen, although I'll probably do something like a 135" to give me some wiggle room on the cabinet height for the projector.

Ideally, I'd want a screen with acoustic transparency so I can put the center channel speaker behind the screen. But it doesn't look like there is such a thing as a UST projector screen that has both ALR and Acoustic Transparency. So the questions are:

1) Is acoustic transparency a requirement? Can I put an in-wall speaker behind a screen that isn't AT and have it still sound good?
2) Is the ambient light stuff more important than sound?

If I can't do both, I can have a separate center channel speaker that isn't behind the screen, but that's not ideal because the UST projector has to be centered on the screen, so the speaker would have to be slightly off center.