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post #1 of 22 Old 01-18-2019, 10:15 PM - Thread Starter
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TMA-1 Theater Build

I’ve been meaning to start a build thread for awhile, and now is as good a time as any since the theater is getting close to completion. The goal with the theater (v1.0 at least) was to have the best room and audio within the constraints of my basement dimensions and budget, and decent video. I figure over the years, I’ll swap out projectors from time to time, but the room/audio will hopefully be set it and forget it.

My room is height-challenged. Prior to the build it was 29’L x 14.8’W x 7.8’H. However, 1/3 of the ceiling had ductwork that ran the length of the room and dropped the ceiling to almost 7’ in that section. Final room dimensions are still TBD, based on soundproofing, acoustic treatments needed, etc… I myself am not the best at home improvement projects, so I’m getting help from a couple forum members to make this room a reality. The design is by desertdome and the build is by d_c. Both of these guys are fantastic and have been a lot of fun to work with on this project.

Here are the details of the build in terms of equipment, etc…:

Room within a room soundproofing, black velvet covering all walls and ceiling, and the least reflective, blackest carpet I could find.

Audio: JTR 212 HTR (3) – front channels
JTR Orbit Shifter LFUs (2) - subs
JTR 8HT-LP (6) – surrounds/height
JTR 8HT-LP Slant (6) – surrounds/height
Storm Audio ISP.3d.20.elite processor
Lab Gruppen E10:4 1000Watt Amps (5)
Torus WM-75 toroidal transformer
Crowson motion actuators (7)

Video: JVC RS620 projector
Lumagen Radiance 4446
Oppo UDP-203
Seymour Screen-Excellence Trim L-150 with Enlightor-Neo fabric; electric masking from
2.40 - 1.78 and two sets of masking panels for 1.66:1 and 1.37:1. (Will probably be somewhere
between 140" and 150" wide 2.40:1, will decide after projector is up)

Miscellaneous: Octane Flash seats – black microfiber (7) – 3 front, 4 rear
JB Martin Fidelio velvet for walls/ceiling
Dixie Home Penley Estates Deep Onyx carpet
RTI C2K1 remote
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post #2 of 22 Old 01-18-2019, 10:34 PM - Thread Starter
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Here are a few pictures
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post #3 of 22 Old 01-19-2019, 06:05 AM
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Thanks for putting up a thread. I look forward to watching this turn out. You picked two very competent people to design and build your room! That combined with your equipment list all being top shelf gear, the finished product should definitely meet your goals.

Archaea's 9.8.4 Home Theater Room
(13) JBL CBT 70j-1 | Denon x7200wa | Sherbourn PA 7-350 amplifier | (8) Ultimax 18" sealed subwoofers | (4) iNuke DSP 6000 amplifiers | Panasonic PT-AE8000U projector | Jamestown 144" AT 2.35:1 screen w/ Seymour XD fabric
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post #4 of 22 Old 01-19-2019, 06:29 AM
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Bill,

I have been looking forward to your build ever since you dropped by here to check out my Orbit Shifters and the room in general. I can't wait to check out the Storm Audio!!!!! Yusss!
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post #5 of 22 Old 01-19-2019, 12:03 PM
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TMA-1 Theater Build

I’ll add some pics too

Here’s the beginning, covering the space with plastic to keep most of the dust in the work area and out of the ducts and rest of the house and lungs. I brought an air filter that I run while I’m working and has a timer so I can leave it running for a couple hours after I leave which really helps. It is super cheap and should be a number 1 buy for anyone cutting and sanding indoors.

The ductwork running down through the side of the room is probably the biggest challenge throughout the build, from design to effort and materials, and headache - literally.

We have a window that gets covered up, some leaks because of the home being at the bottom of a hill, and a fireplace to cover up. Bill had the waterproofing taken care before the build started, then some massive rains came in that showed some more leaks. Hopefully round 2 took care of the rest of them. Some grading around the house in the spring is in order to future proof any more water coming in. All of the awesome unexpected no fun extra expenses in an HT build! The floor and foundation are actually very square, but the i-beam running through the middle is a couple of inches out of square which didn’t cause much of an issue.

You can see in the photos where I installed rubber window tape on the ducts for sound deadening.







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post #6 of 22 Old 01-19-2019, 12:42 PM
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TMA-1 Theater Build

Double 5/8” drywall and Greenglue on the subfloor above for the first step of soundproofing. 2x 29oz tubes per 4x8 sheet each layer, 28 sheets for the 2 layers. I bought a new toy for applying the tubes of Greenglue since I am forever finished with the bucket/sucky gun thingy since I get more glue on myself and the floor that method. With this caulk gun, I can apply 2 tubes in about 2 minutes, including the time switching out tubes. I’ll use about 100 sheets for 4x8 drywall in this build and 70 tubes of Greenglue (2 layers of glue for the ceiling, one for walls). The tubes are more expensive, but the time savings is huge. And there is not a spec of Greenglue on anything except for where it should be. If you have used the pails of glue, then you know what I’m saying here.




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post #7 of 22 Old 01-19-2019, 05:39 PM
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We had to add another panel for the dedicated HVAC for the room and the Torus power supply for the gear rack. This was the first portion of the outer wall built on the game room side of the HT. Future plans also include a recording studio in the basement.

I framed in the fireplace then 2” rigid foam went over all the concrete walls.








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post #8 of 22 Old 01-19-2019, 06:44 PM - Thread Starter
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The plan is to black the whole thing out, but have some LED strips to create a space-tunnel effect when the lights go down before the movie. My college band used to play a song off of this album and the LP cover gave me the idea to do something similar in the theater.
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post #9 of 22 Old 01-22-2019, 06:33 PM - Thread Starter
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Doug started phase I of the blackout today!
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post #10 of 22 Old 01-29-2019, 12:09 PM - Thread Starter
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Carpet is in!
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post #11 of 22 Old 01-29-2019, 12:12 PM
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post #12 of 22 Old 02-05-2019, 09:39 PM - Thread Starter
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Here is an embryonic helmholtz resonator
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post #13 of 22 Old 04-09-2019, 02:37 PM - Thread Starter
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Okay, obviously this thread of mine sucks .

Still, here are some low-res iPhone photos of the acoustic treatments before the velvet panels go up. The screen came from Seymour last week, but half of it had some damage occur during shipping, so that piece had to go back for repairs. I did get a couple seats wired up with the Crowsons and have been messing around with them. They're a blast! Bailed on the space-tunnel lighting scheme mentioned above and am just going to go all in on the black velvet hole. Actually, I should retitle this thread Black Velvet Hole. It just fits. Like a glove.
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post #14 of 22 Old 04-09-2019, 02:47 PM
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Interesting slat diffuser/absorber, is there a reference you used to determine the design? I'd like to read it. The side wall first reflection points look like a little too much absorption from my training.

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post #15 of 22 Old 04-09-2019, 02:58 PM - Thread Starter
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Quote:
Originally Posted by BIGmouthinDC View Post
Interesting slat diffuser/absorber, is there a reference you used to determine the design? I'd like to read it. The side wall first reflection points look like a little too much absorption from my training.
desertdome is the one who did the design. The back of the room is a helmholz resonator. The rest is some non-random "random" formula he gave us for the slat pattern. I'll let him chime in. The science is beyond me.
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post #16 of 22 Old 04-09-2019, 05:00 PM
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Looking sharp!

Archaea's 9.8.4 Home Theater Room
(13) JBL CBT 70j-1 | Denon x7200wa | Sherbourn PA 7-350 amplifier | (8) Ultimax 18" sealed subwoofers | (4) iNuke DSP 6000 amplifiers | Panasonic PT-AE8000U projector | Jamestown 144" AT 2.35:1 screen w/ Seymour XD fabric
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post #17 of 22 Old 04-20-2019, 08:58 AM
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TMA-1 Theater Build

I’m building around a 100 velvet panels to cover the inside of the room using 1.75” wide strips of 3/4” Baltic Birch for the frame held together with pocket screws. It takes about 40 minutes on average to measure, cut, assemble, upholster, and install one panel. Corner pieces take longer, ones with cutouts for outlets or lights even longer. I can crank out the plain rectangles in about 20 minutes. These things are all shapes and sizes and are SO dark when covered in the velvet. It is difficult to see them when installing them inside the room, even with a 4’ LED shop light illuminating the work area.









The black coating on the JTR surrounds looks gray next to the velvet


We will need to paint the cover plates or wrap them in velvet
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post #18 of 22 Old 04-25-2019, 11:31 AM - Thread Starter
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Screen went up yesterday, sans electric masking (for now). The room is about half blacked out. I'll post pictures later. Desertdome will be doing the first pass calibration this weekend, so hopefully, we will be ready for him by then. The theater won't be fully done for a couple weeks yet, but it's getting close.

So, late last night I threw some settings in the projector for different aspect ratios, did some more Crowson testing, demoed the 1.66 set of manual masks with Clockwork Orange for a bit, and fiddled around with the rack, etc... By this point, it's 2am and I've got a stack of potential movies by the rack, including the new 4K pressing of Alien, both 4K Blade Runners, the John Wicks (neither of which I've seen yet), the new 4K pressing of Escape from New York, 4K 2001, 4K Interstellar (which has been my go-to Crowson testing disc), Master and Commander (which I've also never seen), and about 10 others. All potentially good index movies to watch in the almost completed theater now that the screen is up and the front wall is blacked out. What do I end up watching? I don't know if it was the lateness of the hour or if a recreational substance can be blamed, but the first film viewed in my screening room was the 1974 John Boorman experience that is ZARDOZ in all of its 1080p blu-ray goodness! What a trip on the big screen! Maybe when it's all done and d_c and I schedule a KC movie night over here, we'll watch something in a similar vein like Phase IV? Fantastic Planet? Troll 2? Battlefield Earth?
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post #19 of 22 Old 04-25-2019, 01:30 PM
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Quote:
Originally Posted by KDK12KDK1 View Post
Screen went up yesterday, sans electric masking (for now). The room is about half blacked out. I'll post pictures later. Desertdome will be doing the first pass calibration this weekend, so hopefully, we will be ready for him by then. The theater won't be fully done for a couple weeks yet, but it's getting close.

So, late last night I threw some settings in the projector for different aspect ratios, did some more Crowson testing, demoed the 1.66 set of manual masks with Clockwork Orange for a bit, and fiddled around with the rack, etc... By this point, it's 2am and I've got a stack of potential movies by the rack, including the new 4K pressing of Alien, both 4K Blade Runners, the John Wicks (neither of which I've seen yet), the new 4K pressing of Escape from New York, 4K 2001, 4K Interstellar (which has been my go-to Crowson testing disc), Master and Commander (which I've also never seen), and about 10 others. All potentially good index movies to watch in the almost completed theater now that the screen is up and the front wall is blacked out. What do I end up watching? I don't know if it was the lateness of the hour or if a recreational substance can be blamed, but the first film viewed in my screening room was the 1974 John Boorman experience that is ZARDOZ in all of its 1080p blu-ray goodness! What a trip on the big screen! Maybe when it's all done and d_c and I schedule a KC movie night over here, we'll watch something in a similar vein like Phase IV? Fantastic Planet? Troll 2? Battlefield Earth?
Count me in for Troll 2!
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post #20 of 22 Old 04-25-2019, 05:31 PM
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Movie Night! YEAH!

Archaea's 9.8.4 Home Theater Room
(13) JBL CBT 70j-1 | Denon x7200wa | Sherbourn PA 7-350 amplifier | (8) Ultimax 18" sealed subwoofers | (4) iNuke DSP 6000 amplifiers | Panasonic PT-AE8000U projector | Jamestown 144" AT 2.35:1 screen w/ Seymour XD fabric
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post #21 of 22 Old 05-14-2019, 12:16 PM
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Was able to check out @KDK12KDK1 's space today, and it is coming along very nicely. This is a black hole of a theater if I've ever seen one. Didn't have enough time for a demo this time, but hopefully some day in the future maybe once everything is 100% dialed in. I could already "hear" (or not?) the soundproofing and treatments. We all know that JTR can put out a fantastic sound, and paired with the RS620 on that humongous screen will be kickass!

Kudos to @d_c . Lot of hard work creating a space that sweet!
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post #22 of 22 Old 05-15-2019, 02:02 PM
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You had me at Zardoz!
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