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***Working Man's DIY Dedicated Home Theater***

post #1 of 604
Thread Starter 
The Room In the Beginning.....




Rack Specifics


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Screen Wall Construction

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"Screen-On-A-Hinge"

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Functional Theater Shots

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Tinkering Stuff:


EP4000 12V Trigger Mod


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jimg]DIY Thermal Controller Box


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DIY Projector Isolation Platform


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Speaker Building


21" Exodus Maelstrom Infinite Baffle Install

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Sealed MFW Towers


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Irule Remote


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Soffits, Acoustic Treatments and Hush Box

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Edited by NicksHitachi - 1/7/13 at 7:10am
post #2 of 604
Oh, you will. You will be happy with it until you think "what if..."

You got a great start going there.
post #3 of 604
Nick looks like it will be a great space. Im planning a working mans home theatre as well.
post #4 of 604
Nice start.

Not sure if you have budget, but have you considered inwall or on wall surrounds, maybe (dipoles)? space looks limited there and having those would really give you more floor room without having your surrounds on the floor.

I switched my surrounds to onwall and love not having speaker stands in the way anymore.

Anyways, good start.
post #5 of 604
Looks like you've got a nice area to work with. Good luck to you - you've got a great starting point. I look forward to your progress.
post #6 of 604
I have a very similar room to this. In fact it is exactly the same Knee walls and dimensions.
Its good to see you have base traps already because those walls can play havoc on all your frequencies.
As already suggested, I would seriously consider In-walls for the side surrounds. When you get your chairs down, theres not allot of room left on the sides for speakers and foot traffic(assuming your screen is going on the short wall). That is what I did and they sound great. Mine are even kind of cheap at less than 125$ a pair.

By the way I just have to say I know its a bit intimidating on this site for allot of people but what your putting together here will be better than 90% of the visitors on this site and probably 99.99% better than anyone you know.
Your going to Love playing xbox and PS3 on a 100"+ screen in your own dedicated room.
Looking forward to your progress.
post #7 of 604
Thread Starter 
Quote:
Originally Posted by tbraden32 View Post

Nice start.

Not sure if you have budget, but have you considered inwall or on wall surrounds, maybe (dipoles)? space looks limited there and having those would really give you more floor room without having your surrounds on the floor.

I switched my surrounds to onwall and love not having speaker stands in the way anymore.

Anyways, good start.

I have thought of this, and I agree space is limited there. However EMP does not have dipole surrounds or in walls that match the rest of my speakers properly. Not to mention budget(whats that) I'v already invested a considerable amount in the 9 channels of matching EMPs. Guess I'll just have to make them work.

Quote:
Originally Posted by JonathanG View Post

I have a very similar room to this. In fact it is exactly the same Knee walls and dimensions.
Its good to see you have base traps already because those walls can play havoc on all your frequencies.
As already suggested, I would seriously consider In-walls for the side surrounds. When you get your chairs down, theres not allot of room left on the sides for speakers and foot traffic(assuming your screen is going on the short wall). That is what I did and they sound great. Mine are even kind of cheap at less than 125$ a pair.

By the way I just have to say I know its a bit intimidating on this site for allot of people but what your putting together here will be better than 90% of the visitors on this site and probably 99.99% better than anyone you know.
Your going to Love playing xbox and PS3 on a 100"+ screen in your own dedicated room.
Looking forward to your progress.

There are no matching in walls for my EMPs. I have in walls in the living room and their sonic quality has turned me off to them for my theater. As I mentioned before I already bought the EMP matching surrounds and they are rear firing ports so shelf mounting is kinda out the question as the shelf would have to protrude ~16". I'm only using 2 seats wide X2 so hopefully it'll be ok.

Its good to hear from someone who's worked with a space like this, really starts to shrink when you start putting equipment etc up there doesn't it.
post #8 of 604
Thread Starter 
Did some work with the rack, still needs stop molding around back door and rackmount flange in the front to mount face plates, rack mount stuff etc.

Almost ready to cut hole and pop this baby in......

Back:


Front:
post #9 of 604
Looks like you've got a nice space going there. It will be worth the time and effort when you're done.

Bryan
post #10 of 604
Good looking space! Curious to see the finished product!

Are those shelves in your rack cut from the wire shelving available at Lowes, etc.? I didn't see any deeper than 16" and needed something about 24" in depth.
post #11 of 604
Thread Starter 
Quote:
Originally Posted by tony123 View Post

Good looking space! Curious to see the finished product!

Are those shelves in your rack cut from the wire shelving available at Lowes, etc.? I didn't see any deeper than 16" and needed something about 24" in depth.

Yeah, my local store carried 20" wire shelving, which was plenty deep for all my components. What did you need 24" depth for? You got some King Kong amps?
post #12 of 604
There is one amp that needs the 24"depth. I may just use the 20" wire and add a few inches with wood. That would be enough for ventilation any way.
post #13 of 604
It looks like you could smoke a mean brisket on that rack. Mmmmm brisket.
post #14 of 604
That rack looks great! Most of my build is going to be DIY also. Do you have any pics/details of how you built the rack? Specifically, how are the shelves attached? Thanks!
post #15 of 604
Thread Starter 
Quote:
Originally Posted by GWCR View Post

That rack looks great! Most of my build is going to be DIY also. Do you have any pics/details of how you built the rack? Specifically, how are the shelves attached? Thanks!


Been absent here since nothing to report, I cut out and installed the rack last night. I'll post some pics tonight when I get a chance.

The rack was 3/4 mdf.

The shelves:
2x2s to make square frame with 20" wire shelving mounted to it. I used cable fasteners to mount it to the frame like this: http://www.summitsource.com/images/products/COGPSW.jpg
They wrapped the bigger metal bars perfectly

Side brackets:
Adjustable pilaster brackets from lowes, kinda like these http://www.knapeandvogt.com/255_Seri...ge=details.129

Outlets will be:
1 general pass through for HDMI etc.
1 20A circuit electrical outlet
11.2 audio connects

Cooling:
I plan to run 6 120mm silent case fans pulling air out middle and top of the rack venting into the room. The rack will eventually have face plates attached for a flush look so they will be necessary. If this "chimney" cooling approach does not work, I will try the crossflow or through cooling method and mount the fans in the back door and pull the air through vents in the front and out into the attic. I dislike the crossflow because it means an opening(fan openings) to the attic and because I can visually confirm fan operation with the fans facing the room.

A couple tips:
  1. Man this thing was heavy. Me and my brother are fairly fit over 6' 200, and this was a chore to snake through the house and up the stairs. Moving around the garage did not give a good idea of its mass.
  2. Allow more than a 1/4" for clearance of rack to inside stud dimensions. I allowed a 1/4" and one of the studs was bowed so needless to say it was a tight fit. 1/2" would have been much better.
Thanks for the props I'll try to get some pics up tonight.....

Here's the hole cut out with my nephew vacuuming up the Sheetrock dust....
post #16 of 604
Thread Starter 
Mounted the rack in the wall. The molding needs paint and I had to trim the shelves a bit since the rack got squeezed in by about 1/8". So my close fitting shelves turned into a no fit situation, Drat! Serves me right trying to be so tight with the fit.

While doing this I realized that the attic access hole to the left of the rack would serve for an excellent medial shelf built into the wall. So back to the garage to cut and make the in wall shelf. Four shelves deep enough for 2 discs should hold >250 discs. I can also take it out if I need to get in the attic.

post #17 of 604
Thread Starter 
More work on av rack



post #18 of 604
Thread Starter 
More work on rack....



DVD/br shelf



Av rack.... Still needs face plates, paint, and equipment.....



This I'd starting to be like work.....
post #19 of 604
Very clean looking, I like it!
post #20 of 604
Thread Starter 
Thanks Todd!
post #21 of 604
Very nice custom A/V rack!
post #22 of 604
Thread Starter 
Chris,

Thanks, thats a big compliment from a MA Guru!!!

So my next question is with speaker layout/placement/number.....

I went with a 9channel receiver with the intent on using 9 channels but I'm a little concerned because I'm short on space. The heights really don't work as the ceiling is 8' in the highest part and since its a bonus room the far sides are tapered to approx 5'9" where they meet the wall.

The wides are really close to spec with 50 degrees from primary seating which is 10 degrees less than the recommended 60 for DSX wides. This would place them pretty close to the walls and I would have to toe them in pretty strong.

Should I use the DSX wides since they are within the +/- 10degrees recommended by Audyssey or scrap 9 channels and stick with a 7 channel setup for my space.

Also I already have matching speaks for 9 channels so they're really going to waste if i don't use them.....
LL
post #23 of 604
10 degrees isn't that much from the recommended setup and I am sure the Audyssey XT will compensate for the distance and such anyways. Go for it and enjoy it cause it will be a productive choice in the end!

BTW great start and you got a lil you version of you helping out which is way cool!
post #24 of 604
Thread Starter 
Just ordered 6-120mm case fans and the powersupply, wiring, and rpm adjuster to get the cooling wired in on the Rack!!!! Cooling is expensive!!!!

I have the needed studs in the garage painted black for the screen wall, not sure on its design yet but I might get a wild hair and stick it together. I have speaker grill cloth to cover the wall, but prob won't do that until I decide on screen size.....
post #25 of 604
Thread Starter 
OK, so I'm rethinking my seating design now.... I was going to use a row of 3 and a row of 2. The room is 21ft long so with both rows reclining it puts the front row of 3 right at about 12.5ft. I know that the middle of the room is the worst place for cancellation and I don't wan't for most of the seating to be in the worst acoustic place. Would sufficient acoustic treatments and multiple subs mitigate some of this effect?

The other option is to use a single row of 4 probably curved. I would have to offset these seats to one side to allow enough room to get by the side only on one side and obviously puts the outside people considerably to the right and left of center screen.

Another problem with the two rows of seating is the viewing distance of row 1 would be about 10ft and I'm planning on using about 130" 2.35 which puts it pretty close for the first row....

Should I just bite the bullet and compromise with the row of 4 seats?
post #26 of 604
My front row is 11' from a 168" wide image, and it's not seen as a "problem" from me, my family, or my guests.
post #27 of 604
Thread Starter 
Did some work with the rack, cut some face plates and installed AVR, Amp, Line conditioner, and sub EQ. Not sure how the rest of the top is going to get setup probably gonna wait until I get the BR player(Oppo 93?).

Do you think this is enough air flow?

With all six running at half throttle they are slient with my ear up to them at full throttle they are barely audible standing right in front of the rack and silent at the seating position.

post #28 of 604
I love the way this is turning out, i do have one question however. I have seen numerous setups here and people seem to be running the "feedback destroyer pro". My question is this: What function in a HT does this have? i recently acquired one (left at my door with no return address) and was wondering what function this could play when i go to setup my HT.

Thank you,

Andrew
post #29 of 604
Thread Starter 
Thanks!!!

I think most people use it to eq their sub(s), at least that's what I use it for....

Look here: hometheatershack.com
post #30 of 604
Thread Starter 
Looking for some advice on height/wide choice. Here is a sketch of the room:



The wides would get pretty close to the specs, I think minus 3degrees or so. The heights would be nowhere close to the recommended specs, but would allow optimum seperation of my mains. The heights would have to be way lower than spec and closer to the center.

Q1- Would wides put my mains too close for adequate seperation?

Q2- Are the heights too far out of spec to be useful?

Q3- Should I stay with a 7 channel setup in this room?
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