My first try to build a HT room, took me about 2.5 month.
Had to build 2 complete outer walls, and 2 new inner walls.
The screen is 12' wide, 2.40:1 aspect ratio, the walls are drywall on top of hollow blocks.
The screen wall and stage is covered with the black material used for staffed toys. It absorb any light, even the flash from the digicam I used to make the pictures.
I could not get a good quality black velvet, so I tried this soft material, and its just perfect.
The screen itself is made with blackout clothes, from shell canvas.
Under the carpet are tiles. On top the them is foam followed by the carpet itself.
In the corners where the screen is are bass traps, and on the walls some sound absorber to cancel the echoes. They are made with rockwool and installed at the reflection points.
Frequency tests showed that no vibration anywhere occur anywhere in the room.
The aircon is installed in another room, connected to a homemade duct (the frame you see on the back wall in the first picture is the return air). And it cools the rooms down to 18C if I want and is so quiet that I sometimes forgot to turn the aircon off (until the Veco reminds me...).
The paint was mixed based on colors I mixed in Photoshop by atlantic hardware, and they really matched the color I wanted.
The only thing I do not like are the chairs, because I also build them completely, and so they look...
Projector: Panasonic AX-100, 720p
Amplifier: Onkyo TX-SR606, connected via HDMI to the Panny
BD/HD Player: PS3 connected via HDMI to the Onkyo
Media Server: PC with Q6600, 4GB, 8800GTX Extreme
Streaming BD and other HD content from PC to PS3 via wired gigabit lan
Screen: 12' wide, aspect 2.40:1
Sound setup: JBL 7.1 speakter set (will be changed soon)
Anyway, sound and picture are perfectly fine for me. Hope it will be even better when I will upgrade to a 1080p projector in the near future.
Cost: without labor (I hired 2 worker for the cement and the walls): about 120t pesos for material.
Still ToDo: Riser for back row (5 seats). Will be done soon, still planning...
More pictures on the different pages
This was the place before I started:
Starting with the walls
Mixing Cement
Plan of the stage (hard to see in the pictures)
The actual stage is filled with sand, about 1000kg.
Plan of the room
After the room was done