Hello, I started a thread for my home theater about 2 years ago that went stagnant due to a series of things that halted my progress. Now, hopefully, things have changed and I am ready to continue the project and would like the input and assistance from you all.
For those who may remember some details, Lead Paint Test Result - Negative, Asbestos Test Result - Negative, so I then demoed. The layout idea has changed but is flexible and the tub has been modified so the ceiling is all the same height. I am down to studs and some walls don't exist. There are several areas that I require assistance in the decision making process and hopefully you all can be here for that.
Dimensions: 18' 1.5" x 13' 9.5" x 7' 11" measured stud to stud and slab to bottom of main floor's joist.
45" CIH Seymour AV Center Stage XD Screen - own
Isco IIIL Anamorphic Lens with Cineslide Transport - own
JVC HD250 - own
Oppo BDP-93 - own
Emotiva XPA-3 - own
Emotiva UPA-500 - own 2
Mirage OMD-R - own 6
Polk OWM3 - own 2
Global Cache equipment and Irule - own
Marantz AV8801 - to be purchased
LCRs - to be purchased debating between JBL LSR6332s and Adam Audio GTC77s
Subs - to be purchased planning on two JL Audio E112s
Seating - to be purchased planning on Elite Home Theater seating for four unless the layout changes
Crowson Tech Tactile Transducers - to be purchased planning on 4 transducers and one amp
Rack - to be purchased to DIY'd
Probably left something out up there but that should cover what I need to get the theater functional, additions can be purchased at a later date like a Lumagen or some other fun toy.
Electrical: I have one 15 amp circuit planned for the lighting, and three 20 amp circuits planned out one for the 2 subs and the Crowsons, one for the 3 Emotivas, and the third for the rest of the equipment. Do you think this will be sufficient? The 20 amps are all on the same side of the breaker box but the 15 amp is on the opposite side, this shouldn't matter since its just lighting on the 15 amp correct?
A sketch up of the floor plan. The small room to the bottom right is the bathroom that already exists. The longer rectangle room to the top right is what I plan to use as an equipment room, however, the wall that separates it from the theater has currently not been built.
Here are two layout ideas I'm working on, they are messy forgive me. Main differences are FL and FR speaker placement and the door of the equipment room. I know long way is better for acoustics, but the room is so narrow as it is then add the on wall OMD-Rs and it would basically leave me with only 2 seats for the first row and 3 seats for the second. The second row would be the worse place to watch a movie, being too far from the screen, very low ceiling, and so close to the rear wall, and it would be the majority of the theater's seats. Because of this, I have gone with the wide layout. If you see something that I'm missing that would improve the layout, then throw it at me.
The main things I need to figure out before the building phase can progress are the LCR placements, soundproofing, and climate control.
I am planning on the LCR speakers being built into a "Baffle Wall" so placement needs to be determined pre-construction. I know FL and FR should be placed at 30 degrees from MLP, however that it is outside of the screen frame which becomes an issue when having to "toe-in" the speakers. But, placing the LCRs inside the screen frame put them at 20 degrees or less (just under 15 degrees if I put them inside of the 16:9 frame) so what is the adopted norm on this situation? I assume 30 degrees is more for 2 channel stereo listening and that the tighter placement won't be as big of an issue for movie playback as I am making it?
Soundproofing will be DD+GG, need to figure out clips channel areas, and decide if room within a room would be worth loosing all the extra space over. Clipping the ceiling for sure, and understand I only need to clip the walls that share a wall with another room but I don't understand that concept 100%. I really only want to prevent the sound from getting to the floor above (master bedroom) and don't care if the other rooms in the basement can hear it or not, but if the sound can flank from the other rooms up than why can't it flank from the space between the foundation walls and up?
Now, the "Baffle Wall". Since the speakers will be in direct contact with the "face" of the framing, should that wall be decoupled from the floor joists above? If so, would this be where I would use IB-3 Brackets along the top plate? Also, if this wall should be decoupled using the IB-3s, is it ok that it is then in direct contact with walls (in the corners) that aren't decoupled? Wouldn't that end up re-coupling the wall?
Climate control. Which is better, soffit muffled supply and returns from the whole house HVAC system or Dead Vented supply/return? I am planning on a soffit running the perimeter of the room to contain the ducts and wiring, the soffit will be at least 1'x1' maybe a little bigger.
I'm sure I've left out all sorts of info that would assist everyone in helping me, sorry if that is the case and I'll update this main post with the requested info or if I think of info to add. Thanks in advance!
Edited to add info about the soffit