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Discussion Starter #1 (Edited)
I'm moving on up from a tv, Monoprice inwalls and diy kit subs to a 120" 16:9 Silver Ticket AT screen, diy Fusion 8 speakers for LCR and am upping my woofage game to 4 diy large low tuned ported subs. It is all going to fit behind the screen in our basement "media area" which is the end of a large cove in the basement. Since I'm installing a PJ and screen I'm calling it the "Theater Area". Projector will be here on Saturday. I went with a short throw Optoma GT1080 Darbee edition. Pics and updates to come..

Optoma GT1080Darbee 1080p 3000 Lumens 3D DLP Short Throw Gaming Projector

https://www.amazon.com/dp/B06XHG92Y5/ref=cm_sw_r_cp_apap_b4k2fNd5Qim8j


Cheetah Mounts APMFW Universal Projector Ceiling Mount. Includes an Adjustable Extension Pole and Twisted Veins 15" HDMI Cable https://www.amazon.com/dp/B073SKR8ZN/ref=cm_sw_r_cp_apap_RQNBUO6qu4V5A

 

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Discussion Starter #3
This is the current setup. The mini speakers are not connected. The in walls are not connected. Tv is a 60" Sharp Aquos. Receiver is a Denon x2200w. Surrounds are all 8" in-ceiling from Monoprice. I had them installed before I got into this hobby and it turns out they are in the right spot for Atmos! Waf dictates that the side surrounds have to be in-ceiling so for now I have it wired up as 5.1.2. Subwoofers are dual 18" in sealed diysg 4cuft cabs powered by a iNuke 3000 DSP.

The console will go and the tv will come down, inwalls removed, cavities stuffed with insulation for bass trapping.


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Discussion Starter #4
Rendering of what I'd like it to look like when done and where the projector will go. The front of the lens will be about 55" from the 120" silver ticket AT screen. Screen will be framed with curtains.

I need to figure out how to run the wires inside the walls to the PJ and then screw a 2x4 to the ceiling that vertical 2x4s will attach to so the screen can be mounted. More to come.

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Discussion Starter #6
Amazon got it right today and my new Optoma GT1080 Darbee showed up! So I went down a assembled the frame on the 120" 16:9 screen and "tested" it. Damn that is big! Can't wait to watch a movie on it!


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Discussion Starter #7
Picked up some lumber tonight. Here are some drawings of the plan. H frame on rubber feet, screwed to the ceiling. Pressure fit panels to clean up the look and conceal equipment. The screen will be 55" from the lens. It has no zoom and a fixed offset so it will require fiddling.


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Discussion Starter #8
PJ is up. Wiring it's done through the ceiling. Decided (after 2 hours of deliberation) to mount the projector to the arch way rather than the ceiling. The cheetah mount I bought only does a 6" drop or 15-27" drop. This projector has a fixed lens and offset (because it is short throw) so the height of the projector is really important because the top of the screen will be 9" below the center of the lens.


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PJ is up. Wiring it's done through the ceiling. Decided (after 2 hours of deliberation) to mount the projector to the arch way rather than the ceiling. The cheetah mount I bought only does a 6" drop or 15-27" drop. This projector has a fixed lens and offset (because it is short throw) so the height of the projector is really important because the top of the screen will be 9" below the center of the lens.


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Pete,

Hey welcome to PJ world! Great to see another Chicago area HT build on here.
Looks like a really nice layout you have planned. Your behind the screen sub-woofer array looks a bit familiar*

I see you also call this an "HT area" as opposed to a dedicated room. That was also my direction. However after enjoying Mike's setup*, I am rethinking my vision for "HT2".
 

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Discussion Starter #10
And success! I think I have the PJ set a bit too far back. The picture is about 3" bigger than the screen. Going to mess with it more today and tomorrow. Maybe I'll move the screen closer and make Moar room for Bigger subs.


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Discussion Starter #12
Hey Pete how does the picture look have you fired the protector up on the screen yet.
I think it looks pretty nice but I don't have any black velvet behind there and the walls are not black so I'm getting plenty of light reflecting back.

Funny story to prove I'm a noob projector owner: It was almost 1am last night when I finally got the projector running and it looked a little blurry but i figured maybe I was just tired went to bed right after. I woke up this morning and realized the projector has a focus ring!! lol. I ran downstairs and focused it, looks much better!

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Discussion Starter #13 (Edited)
I read that keystone correction involved compression and is to be avoided if possible. So I removed the mount and screwed onto the wall a couple of 5"x5" pieces of plywood to move the projector a little closer to the screen and to let the angle the projector is mounted enough room to avoid using any sort of digital correction. I also had to move the screen up and down a couple times to get it just right. Ahh the price you pay for livin la vida short throw.

Also sold my 6 year old Sharp Aquos 60" LCD TV for $300 bones! My daughter is holding all the cash!


I think I definitely need the black backing material for my screen. I can see the support bars and in since scenes the image on the back wall itself. I've emailed silver ticket to see if they sell it separately. I also got some good info from eng-399 of where I can buy my own fabric. I need to buy some anyway to make the side panels to surround the screen.
 

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Now I see what your taking about the fabric I was talking about should work fine behind the screen and if your seeing the 2/4’s definitely drape that behind the screen. I have samples of gom and dmd fabric that should help. Joann fabrics has a thinner material that might work to. Once you get these in hand and put it up you’ll see. Looking good man!
 

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Discussion Starter #15
Picked up some preprimed mdf 1x2 today to make up the panel frames for around the screen. Also installed 3 yards of Parts Express grill cloth directly behind the screen. Can't see the screen supports or the 2x4's although some light does seep all the way through. I guess it should since this is an AT screen and AT fabric behind it. Today I also rewired my speakers after making new interconnects with banana plug tips from Monoprice. Sounds exactly the same, but it looks cooler back there where no one but me will ever look ;-). I ran a full audyssey xt 8 point calibration too. It just sounds great. I never thought it'd like hearing the speakers from behind the screen so much. It just makes the experience so much more enjoyable because that's how it is at the movie theater. It's hard to explain. Oh, the other night I busted out my very old Avia disk and just set the brightness and contrast, it didn't need much of a change but every little bit helps. I'm really impressed with the projector, for the money I think it does a fine job. The kids already like playing the old Wii on it. Being short the means they can walk right up in the screen! Mission accomplished!


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Discussion Starter #16
Lined the back wall with r19 6" thick pink fluffy insulation. This is to comment SBIR as my speaker baffles are about 20" off the wall. So I need to absorb 170hz which is a wave that's about 3' in all directions. Bob Golds absorbtion coefficients page states that the r19 has an nrc if .64 @ 125hz and 1.14 @ 250hz. That should cover the range I need to absorb. Worst case I put another layer on there. A roll is $35. So far I have one role in there.



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Discussion Starter #17
Started the frames for the panels for around the screen. I started painting them tonight before test fitting them. Before I painted the last panel frame I remembered to do that...

Fit was a bit too tight as I plan to have these pressure but into place. I'm going to try to sand them and repaint. Otherwise I'll rebuild them. With the brad nailer it goes very quick.


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Discussion Starter #19
Thanks for reading along. I took a break to make some new subs. I'll add a link later to my thread over in the diy forum. I call these the Periscope subs because of the way I designed the ports.


I hope to have them done this weekend.
 

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Discussion Starter #20
Started the frames for the panels for around the screen. I started painting them tonight before test fitting them. Before I painted the last panel frame I remembered to do that...

Fit was a bit too tight as I plan to have these pressure but into place. I'm going to try to sand them and repaint. Otherwise I'll rebuild them. With the brad nailer it goes very quick.


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The primed mdf I used to build these frames was too flimsy. I got three panels built but they are junk. I'm also not happy with the speaker cloth I got from PE, only because it can sometimes look brown depending on the angle. I'm going to start over with stronger wood and will use my trusty kreg pocket hole jig to make strong frames. I'm on the look out for a good Black Velvet fabric that isn't super expensive. I figure to do all of the frames it would take 9 yards.
 
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