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The SuperNoVA Theater - Planning & Build - Page 2

post #31 of 95
Quote:
Originally Posted by ozziegt View Post

The more builds I see the more people I see who have mounted chairs within inches of the walls. I was just looking at carboranadum's absolutely amazing build and it looks like he did the same, he has a 13' wide theater. Along with comments like this, I'm not really concerned about the width of the room except when it comes to screen size...

Hey...thanks for the kind words! Let me know if you want to make the trek out here for a visit.

Yes, I did push my rear side chairs against the walls, primarily due to space constraints. I used bipole (quad-pole actually) surround speakers for the sides and rears, but sound there is noticably diminished from the money seats in the middle. *I* can hear the difference, but my guests can't. So, consequently, those side chairs are reserved for guests.
post #32 of 95
Quote:
Originally Posted by ozziegt View Post

I think I am going to try to squeeze a 120" wide 2:35:1 screen in there. I should be able to do it with the 13' wide room. That would leave 18" on each side for the bass traps and speakers.

Go big or go home! That's a great size. At 19' width, you can go much larger (but the light cannon that you will need to properly illuminate that screen will cost $$$). I did 130" width (141.5" diagonal) 2.37:1 AT screen in my theater (with a 13' width). I LOVE it!
post #33 of 95
Thread Starter 
Quote:
Originally Posted by carboranadum View Post

Go big or go home! That's a great size. At 19' width, you can go much larger (but the light cannon that you will need to properly illuminate that screen will cost $$$). I did 130" width (141.5" diagonal) 2.37:1 AT screen in my theater (with a 13' width). I LOVE it!

Yeah I was thinking about trying for 130" wide, but then I would have to put the speakers behind the screen. Which is an option I am still open to, but maybe that will place the front row too close to the screen? I could also make the closet 12" narrower, which would make the wall 14' wide, which would leave me enough room for the screen + speakers.
post #34 of 95
Quote:


Tom I might just take you up on that offer.

Just not this Saturday...family thing to go to. Other than that, shoot me a PM and we'll work it out.
post #35 of 95
Thread Starter 
Quote:
Originally Posted by tlogan6797 View Post

Just not this Saturday...family thing to go to. Other than that, shoot me a PM and we'll work it out.

Might be later...sometime in June perhaps. I'll PM you when I have a better idea.
post #36 of 95
Quote:
Originally Posted by ozziegt View Post

Yeah I was thinking about trying for 130" wide, but then I would have to put the speakers behind the screen. Which is an option I am still open to, but maybe that will place the front row too close to the screen? I could also make the closet 12" narrower, which would make the wall 14' wide, which would leave me enough room for the screen + speakers.

Folks sitting in the front row reclined 3/4 of the way have their eyeballs 11.5' from the screen in the front row. The front of the seats is 9'4" from the screen. It IS a different experience than the back row, that's for sure!

You are going to be constrained by the length. 19' is short for two rows of recliners and an AT screen. Time to make some compromises.
post #37 of 95
Thread Starter 
Are these calculations correct:

According to this calculator, if I do a 120" wide 2.35:1 screen, that will give me a 92" wide (~105" diagonal) 16:9 screen. If I mount that on the wall, the front row will be about 11' from the screen and the back row will be about 18' from the screen.

Those distances sound OK for the screen size? Or is 92" wide too small for the 16:9?
post #38 of 95
You could always go with a different ratio screen to get a little more height, like a 17:9. Just a thought.
post #39 of 95
Thread Starter 
Yeah, I'm probably going to DIY the screen anyway, so I could go with something a little taller to get the larger size for 16:9...there will be a little bit of letterboxing for 2.35:1, but I have total light control so that shouldn't be a big deal.
post #40 of 95
There are some threads about 2.0:1 screens, you'll need to search for them. 4 way masking makes them really great if you can work out the details.
post #41 of 95
Awesome! Good to see another local VA/MD build. Welcome to the club!
post #42 of 95
Thread Starter 
I want to do this right and get permits and everything. I know some of you Loudoun County folks have gone the permit route so I would like to hear any thoughts you have on what issues I might run into.
post #43 of 95
I haven't had ANY issues. I went down to the Leesburg Gov Center and came out with my permit in less than two hours. And that included having to re-do all my drawing on the forms they handed me (As opposed to the ones I downloaded and filled out). But the lines were short and that was at the height of the housing market. It's probably faster now.

Inspectors were very helpful, even when I failed. One gave me his desk number and said I could call him directly for a re-inspec to know if he could come to my place first that day so I wouldn't have to take off an entire day. The online scheduling worked great, too. Most inspections didn't take more than 10 minutes. My insulation inspection was about 30 secs and the guy said, "I wish they were all this easy. You should see some of the things I see."

I think that as long as they see things being done properly, they're pretty lenient. If they walk in and see a mess of mistakes, they'll take a harder look.
post #44 of 95
Quote:
Originally Posted by tlogan6797 View Post

"You should see some of the things I see."

Haha, I've seen some of these things in my previous customers homes. It's really amazing there aren't more house fires.

Many people treat inspectors like the enemy. But they are there to make sure you don't flood your basement or burn your house down. If you do the work right, they are in and out. I just had a fp inspection, the gas line and final were both done right there and it took five minutes.

It also helps to keep your site clean when the inspectors show up. Makes everyone happier.
post #45 of 95
Thread Starter 
Yeah I've just been reading through Brit's thread and it seems pretty easy. My room is so stupid simple too, I don't see any issues coming up. My biggest concern is the framing. Do you run into any issues with decoupling the framing? How do you do the firestopping if the framing is decoupled? 2.5 sides of the theater are going to have framing which is decoupled from the walls & ceiling.
post #46 of 95
Thread Starter 
Is there any reason everyone runs soffits all the way around? I am wondering if I should go with a soffit or instead opt for the ceiling height and just do a soffit in the front and back where I am going to have ducting.
post #47 of 95
Quote:
Originally Posted by ozziegt View Post

Is there any reason everyone runs soffits all the way around? I am wondering if I should go with a soffit or instead opt for the ceiling height and just do a soffit in the front and back where I am going to have ducting.

Many people use them for a number of things combined. HVAC, rope lighting, can lights way they each dont need to be sound sealed, and then the look in general. Having just a soffit in the front and back would be the owners choice I would think. I dont see it causing any problems with acoustics but leave that to the experts. When I said the word tray ceiling to Dennis he spoke up really quickly and said NO you cant do that because the arent square. Thats when I learned not to call soffit a tray even though a lot of contractors will call a design that is exactly like soffit a trayed ceiling.
post #48 of 95
Quote:


How do you do the firestopping if the framing is decoupled? 2.5 sides of the theater are going to have framing which is decoupled from the walls & ceiling.

I didn't have any problem firestopping the decoupled walls. I installed a strip of rockwool about 6" wide between the wall and the framing along the top of the wall. The idea is to plug the gap between the framing, the foundation wall and the ceiling joist cavity.
post #49 of 95
Quote:
Originally Posted by ozziegt View Post

Is there any reason everyone runs soffits all the way around? I am wondering if I should go with a soffit or instead opt for the ceiling height and just do a soffit in the front and back where I am going to have ducting.

Looks good and provides a good place to mount cornice molding and/or a small light tray for indirect lighting, See Damelon's it becomes a place to install recessed down lighting without punching a hole in the sound containment drywall bunker.

Place to run duct work horizontally around the room to the proper locations and to use the soffit as a dead vent, something you will want to do with your proposed HVAC design

Other unused parts can be used as a bass trap by filling with insulation and covering with a fabric bottom, See Sandman's and Damelon's

You can use it as a chase to run ALMOST ALL of your rooms wiring, High voltage, Speaker and other low voltage, rather than punching another set of holes in the walls. Outlets are mounted in Columns, Stage and riser not in the walls. Bring all wires into the room thorough two holes with conduit up in the soffit. One for HV the other for LV. Once all wiring is done, plug the ends of the conduit.

You can build a projector hush-box integrated visually with a soffit.

Bottom line is soffits are your friend if you have the headroom.
post #50 of 95
Thread Starter 
So it sounds like I should do soffits for sure. My ceiling joists are 8'10" from the floor...is that enough room? How wide / tall do people generally make soffits? I am probably going to do something like below. The yellow highlighted section is going to be soffit / bulkhead. I kind of feel like if I just do a rectangular soffit around the seating area, you will see an akward hump when you enter the room. Thoughts?





Here is my plan for soundproofing:

Ceiling, blue walls: Clip & Channel with double drywall / sound glue
Green walls: isolated framing with double drywall / sound glue

post #51 of 95
Extending the duct to the door is better than having a "hump" but, if it were my space, I might try to close off the theater itself, so it were a rectangular room, and also so the fridge/rack area were outside, which would let that area have full-height ceiling and keep out unwanted heat, noise, and lights.

It looks like the soffit is just 1' wide on the side walls - will there be enough room for both the HVAC duct and can lights?
post #52 of 95
Quote:
Originally Posted by ozziegt View Post

Thoughts?

I had the exact same idea of extending the soffit to the refreshment area, glad you realized the need. The soffit drop of the bacon race was 10 inches. The width can vary and you need to consider the objects you need to hide. The duct work over the screen may be a defining element of soffit height at least for that part.



You can go with a taller soffit over the screen and there are some design tricks you could use to make it look intentional, Like a rounded soffit coming out over the screen with some lights bouncing off the screen. sketch coming up.
post #53 of 95
post #54 of 95
Thread Starter 
Quote:
Originally Posted by Morph1c View Post

Extending the duct to the door is better than having a "hump" but, if it were my space, I might try to close off the theater itself, so it were a rectangular room, and also so the fridge/rack area were outside, which would let that area have full-height ceiling and keep out unwanted heat, noise, and lights.

It looks like the soffit is just 1' wide on the side walls - will there be enough room for both the HVAC duct and can lights?

The thing is that on the other side of the wall where I am putting the cabinet / equipment rack is a bathroom. So the only way to really make the space rectangular would be to make that area a closet, which doesn't seem like a very good use of space to me.

I estimated the soffit width at 12"...final width is TBD.
post #55 of 95
Thread Starter 
Quote:
Originally Posted by BIGmouthinDC View Post

I had the exact same idea of extending the soffit to the refreshment area, glad you realized the need. The soffit drop of the bacon race was 10 inches. The width can vary and you need to consider the objects you need to hide. The duct work over the screen may be a defining element of soffit height at least for that part.

You can go with a taller soffit over the screen and there are some design tricks you could use to make it look intentional, Like a rounded soffit coming out over the screen with some lights bouncing off the screen. sketch coming up.

Hmm, that rounded soffit isn't a bad idea...I might switch the room around and put the screen on the other side...not sure yet. Probably won't know for sure until the framing / walls start going up.
post #56 of 95
Hey....that looks like Logan's design! Except his has one soffit much larger than the other, but it's darn close.
post #57 of 95
Quote:
Originally Posted by BIGmouthinDC View Post

You can use it as a chase to run ALMOST ALL of your rooms wiring, High voltage, Speaker and other low voltage, rather than punching another set of holes in the walls. Outlets are mounted in Columns, Stage and riser not in the walls. Bring all wires into the room thorough two holes with conduit up in the soffit. One for HV the other for LV.

Big, how significant are the risks of running both HV and LV parallel to each other in the same soffit? I have read that HV and LV should not run parallel to each other for any significant distance unless they are at least 2 or 3 feet apart.
post #58 of 95
Quote:
Originally Posted by ozziegt View Post

The more builds I see the more people I see who have mounted chairs within inches of the walls. I was just looking at carboranadum's absolutely amazing build and it looks like he did the same, he has a 13' wide theater. Along with comments like this, I'm not really concerned about the width of the room except when it comes to screen size...

I just ordered a set of curved 4-seat chairs from Roman IOVOOVOI (Jives). My room is also 13' wide. Given the specs for those chairs I expect people sitting in the outer seats will have their head about 3' from the wall (even greater distance to speakers). That is a reasonable distance. My front row is only 3 curved Jive's IOVOVOI. This allows me to center chairs in the room and still have sufficient width aisles on both sides.

My build thread shows current planned use of soffits. It will be a mix of HVAC, bass trapping and soffit lights. If you're creative with positioning you can still keep the soffits fairly narrow and low profiled.

Like you I'm also undecided on screen size but will be going scope between 120" and 130".
post #59 of 95
Quote:
Originally Posted by 235 View Post

Big, how significant are the risks of running both HV and LV parallel to each other in the same soffit? I have read that HV and LV should not run parallel to each other for any significant distance unless they are at least 2 or 3 feet apart.

speaker wire and HV no problem on opposite sides of the soffit.
The thing I would be careful of is a un-amplified sub-woofer signal cable. Keep them on opposite sides or route your sub cable differently.
post #60 of 95
Quote:
Hey....that looks like Logan's design!

You beat me to it!

I WANTED to extend that soffit on the left but the room is so narrow and the soffit so wide that I don't think I would have passed code for ceiling height.
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