Originally Posted by Mocs123
That doesn’t look like a bad room for a theater at all. I assume that with those big JBL’s that you are planning on building a false screen wall and will be using an acousticlly transparent screen. Are you planning on going the DIY Spandex screen route, or a screen like the Silver Ticket AT screen? I know you don’t want to think about gear now, but you do need to figure out a few things. You’ve done this before so you probably have already thought about screen size, throw distance, where your projector will be mounted, and where your equipment will be kept. Your projector of choice will (potentially) have an impact on screen size and where you’ll mount your projector.
What about seating – one row? Two rows and a riser?
You mentioned Atmos. Are you going 5 or 7 channel for your main speakers? 2, 4, or 6 for your Atmos channels? Either way it seems like you are going to be cutting some drywall.
For your room, I’m assuming you don’t want to add a layer of green glue and another layer of drywall. It also sounds like you don’t want to turn this into a bat cave. I’d start by painting the ceiling a dark gray or some other dark color. I’d go with a gray a shade or two lighter on the walls, but not too light. I’d paint the trim a darker gray to match the ceiling, but it’s up to you. You may even get your wife to help you pick out colors. You want to walk the fine line between HT performance and keeping the room from looking like a dungon.
Then I’d go with a cordinating carpet of some kind. The light tan wouldn’t do well, so if you can change it, I would. Lastly, I’d change (or paint) the HVAC registers, switches, and receptriles as the white would really stick out.
I’d build a window plug if your wife approves – something removable both in an emergency, and if you ever wanted to turn the room back into a bedroom/bonus room. If the plug idea doesn’t fly, keep the blinds and add dark blackout curtains. I doubt your wife would OK this and you might not want to do this if you have neghbors that see that window, but occasionally I have to go work night shift out of town, and I have found that aluminum foil and a roll of blue painters tape can really black out a window, whereas curtains still let light through around the sides. Aluminum foil + curtains makes for a pitch black room.
For room treatments, I’d put some bass traps in the front corners and line the front wall behind the screen with Linacoustic or Owens Corning 703. Hanging this will put a few screw holes in the drywall, but they should be able to be spackeled pretty easily if you ever want to turn this back into a regular room. On the walls I would build some accoustic panels with OC703 and acoustically transparent fabric. You can also buy these panels pre-built from ATS Acoustics and others. You can go with more elegent plain panels or add some flair with art panels. I’d add 3-4 of the larger 2x4 panels on each side wall and maybe one in the back between the closet doors. You might even add one or two the the ceiling.
Hey, I appreciate the response and suggestions!
I am planning on an acoustically transparent screen on that wall where you see the speakers. Part of me says go wall to wall huge and part of me says keep it reasonable so I don't need a light cannon projector. I have done DIY screens before with pretty good results. The Silver Ticket screens I think are a good value and prevent me from having to build something so I'm leaning in that direction. I think the largest I could go would be the 158" diagonal 2.35:1 screen. I know I want constant height but this size might be pushing it. That slanted ceiling means I am limited as to how far back I can hang the screen and still clear the speakers and not have the screen too close to the floor.
I like the idea of painting the ceiling and that would be quick and easy. I could also change out switch and receptacle plates to black with no problem. I had thought of a mix of maybe ceiling to floor fabric to look like curtains staggered with acoustic panels. I have a few panels I made for my old theater out of Roxul and covered in speaker fabric. I would need more here but I'm sure I can reuse what I have as well.
I used Linacoustic on my front wall in the last theater so I know I want to use that here as well. Some of this stuff is just hard to find locally.
For seating I'm thinking two rows at most with a riser in the back. I have some "real" theater seats that bolt together, I think I have 5 or 6 of them. I would like to use them in the room but would also like to have a more comfortable option as well like leather or "pleather" reclining chairs.
Another thing, there is zero overhead lighting in this room. I plan to take the ceiling fan down and maybe put in some recessed lights. I would love to make some sort of soffit around the ceiling but the weird shape prevents that I think, not to mention the HVAC return and registers.
For gear I have thought about it a bit but nothing set in stone. Crown has their XLS1002 and XLS1502 amps on sale at the moment so I thought about getting a few of those for the LCR speakers. I need a receiver or processor as well, probably a receiver to start so I can power the surround with that for now. It might be a bit overwhelming to use these 8340a surrounds for Atmos ceiling speakers. They are pretty huge. I was thinking maybe 7.2.2 or 5.2.2 to start with for speaker configuration. Not sure what most people are doing these days but again this room is kind of a challenge. The side surround should be easy enough but rear surrounds will need to mount on that sloped ceiling. At least the angle is correct there so maybe it's not a bad thing.