After spending countless hours on here trying to soak up all the knowledge that I can it has come time to jump in with both feet and start my own build.
I will be finishing a full basement along with the theater room but the theater will take a little higher priority. So here are the details of the room:
Overall space between studs: 19'-9" x 12'-6 3/4" x 8'-6"
Room construction will be DC-04 clips to decouple walls and whisper clips and channel on ceiling. Two layers of 5/8" drywall with green glue all around. Hoping this will help keep the sound in and the noise out. All walls will be fabric frame with room for sound treatments (similar to Damelon's). Front wall will have an AT screen with a stage and back wall will have a riser for second row seating. Speaking of seating, there will be two rows. First row will consist of three recliner style theater seats while the second row will consist of 5 theater style rocker seats.
Equipment will consist of:
- IB sub build consisting of (4) IB3 18" subs in a manifold configuration
- LCR speakers will be DIY 4Pi
- Two pair of Emotiva ERD-1 speakers for surround duties
- Video provided by JVC RS45 projector (currently sitting in a box and mocking me)
- Xbox 360, PS3, and UnRaid server (with PCH A-300) for video sources
- hopefully a new receiver and amp in the future
Here is the current layout plan:
And here are a few pics of the space as it sits now:
Looking at future theater rear wall.
Looking at right side of future theater.
Supplies ready and waiting!
Here's to hoping this thing works out.
Good looking plan. Couple of observations. That is a huge investment in space for your IB sub. Something that I'm not sure I could ever commit to if I were building for myself again. On the 4Pi's, Wayne and others advised me to toe in the L/R but space prohibited me from doing that.
+1 on taking a different direction and ditching the IB sub..
Compromising way too much to include it. Immensely powerful and capable subwoofers are readily available and therefore giving up precious room space for it doesn't add up.
The other problem with the IB sub is that you have zero flexibility in moving it without an entire reconstruction. The benefits of the extra space and the ability to slide a subwoofer a few feet here and there along the front wall would overrule it for me..
As far as the recliners, I like the theater rockers and think they would be a nice addition. Though having extra depth is never a bad thing and would definitely open up more options should my plans change as I get closer to that stage.
Ted W. - Has there been a move away from using double drywall and going to OSB/drywall? I know the benefits of being able to install anything anywhere you want without trying to find a stud but want to make sure that I am getting the same soundproofing benefits as drywall. The stairs are located on the far right side of the layout...
Tedd - The section under the bumpout would be approx. 5.5x Vas for (4) IB3 18" subs. I would be adding insulation inside the chamber so I might be able to get that up over 6 which I believe to be acceptable. I had not thought about stacking them and having them fire in from the side. It is an intriguing idea. Not sure how that would change the output and how much easier/difficult to tune. I believe you need about 2 feet clear for each box (so that you are not firing it into a solid surface) so it might be tough to stack them with only 8'-6" of height. The line array is another option and probably my best bet if I decide to go this route. Will definitely look into the idea.
Zamboniman - The IB has been a part of my design from the beginning and I also like the idea of having a different sub setup than most. Others have been able to tune them so I think I can work with it's limitations. Gotta want it.
Not as much done as I would have liked but still progress. Nothing fancy, still working on the sheathing and plywood. A few pics...
Looking toward the rear of the future theater space.
Looking from the right of the future theater spacer.
Hoping tomorrow to have more of the plywood floor in. If all goes well I should complete this stage of the build by early next week. I tend to overestimate my ability so don't be surprised if I am still working on this next weekend.
I agree with Ted's recommendation to use OSB as the first layer. I did OSB and then 2 layers of 5/8 drywall and being able to put screws anywhere comes in really handy. Saved me a lot of time later when putting up soffits.
Yet another change in the clip pattern can boost the load potential to over 13 pounds a square foot. So clips and channels can certainly be used with heavy loads. The clip pattern / quantity of clips can be varied to accomodate different loads like projectors, lighting and soffits. The goal being to match up the right clip pattern with the projected weight load. More clips without more load means a stiffer spring = higher resonance = less bass isolation. Balance is the key
The Soundproofing Company
You've got a nice space there - good luck!
All right, welcome in advance to you too!
I went with the JBL and DE250 upgrades. The 4pi is shorter than the the 3pi and I am height constrained but the AE woofer sounds like a winner though and cheaper than the JBL now, I thought I heard? Either way, I really like the way these blend with the IB.
I am definitely looking forward to joining the 4Pi/4 IB3 club! I have the DE250's already but don't plan to upgrade to the JBL's yet. I can't justify the extra cost right now. Maybe down the road that would be a nice upgrade when cash isn't flowing out for other things.
I am looking into possibly doing the line array as suggested above to save a little depth and add some into the theater room and some into the gym area next door. My only concern is making a wall that could withstand 4 18" subs.
I never gave it much thought in doing two doors into the theater room. Right now the plan is to have one. The small little hallway will house the equipment rack on the left (equipment room is to the bottom left of the theater room and a couple of shelves on the right for movies and gaming accessories. Will probably stay with one door but might reconsider as I get farther into my build.
Small update today. More of the same from the past two days. I will have foam board and plywood in my nightmares tonight.
Foam is nearly done. Just need to complete a strip around the top of the foundation.
Have to get back to another project I started before the basement so it may be a week or two before I can get back to the basement. Also need to wait until lumber goes on sale so I can get the framing materials.
Just subscribed - Looking good!
I realize we haven't had much in the way of cold weather -however; I'm curious if you are noticing a different feel with the floor insulated?
And a question: Have you considered sealing and insulating the upper 2 feet of your walls with the spray foam (including the plate/sill area)?
I originally wanted to pull all the insulation around the top of the foundation and spray all the cavities but I don't really have the additional funds budgeted for that (after seeing what kind of money is going to be needed for other parts of the project ). Also thought about cutting up the pink sheathing and filling each cavity with that but that would be more trouble than it's worth I think. I have a large pile of insulation that I pulled off the top 2 feet of the concrete walls that I can use. Plan to frame the walls around the perimeter and then stuff more of this insulation into those cavities to help bring up the R value. Will have 6-8 inches of insulation around the top of the foundation so I think that should be sufficient.
Hope to get back at it soon. Currently finishing up a project that I started before the basement that the significant other would like to see finished before I get lost in a new project. Also, still shopping for the best pricing on lumber for framing. Looking forward to that stage of the project.
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