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post #1 of 9 Old 03-15-2014, 09:19 AM - Thread Starter
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After building our first house with a nice but not custom builder, my wife and I are going to go the fully custom route. We are very early in the process, and all I know for sure thus far is that we will have a 1-story with a proper dedicated theater. Our current HT room is upstairs and while I enjoy it, it is too small, it is not soundproof at all, and I can't use it ever if my wife isn't in the room with me. Suffice it to say, seaton submersive + no soundproofing = "turn that damn thing off".

My goals for this new theater and what I know so far:
I want 2 rows of seats. Like a 4-across and a couch. Perfect to entertain 6 people is all I want.
No bar/other stuff, this is a dedicated space.
I want to use as much of my current equipment as possible, but expand to 7.1 (possibly 7.2)
I want to do a 2.35 CIH setup vs the 16x9 I have now
Current Equipment list:
- Seaton Submersive HP+
- B&W CM9, CMC2, DS3 surrounds
- Epson 8350 (for now, will replace with JVC or Epson's new models this year)
- Emotiva amps
- Denon 4311ci pro
- Mac Mini running plex media server
- PS4/Xbox One/PS3/Xbox 360 (the causes of the loud noises/marital strife smile.gif)

Room size as we currently have imagined is 16x21 or so, with equipment located outside the room or hidden away.

What I'm looking for is any advice of things I should make sure I do or ask the builder. I am heavily considering hiring the Erskine group to do the design work, but the designer has built cineplex theaters before and claims to know everything needed. I'll be testing his knowledge to see if he's really an expert or if I should hire someone like Dennis instead. Any advice will be much appreciated!
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post #2 of 9 Old 03-21-2014, 12:37 PM - Thread Starter
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When using a Fixed Frame AT screen, do we need to be concerned that the metal frame of the screen will disrupt the sound from the L/R speakers? Like do I need to ensure that the speakers are either fully within or fully outside of the screen's frame?

Edit: Reason I'm asking is I'm thinking my LCR will be JBL 3252N's, and with their big size it looks like the L/R will have the screen edge somewhere right in front of the horns unless i push them out closer to the walls, or move them much closer to the center. With two subs up front, it will change the placement of the subs as well (between LCR or outside them in the corners)
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post #3 of 9 Old 03-21-2014, 03:42 PM
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I was worried about the exact same thing.  I just posted a similar question a couple of days ago.

My instinct is that I definitely want to keep the speakers within the visible screen.

My problem is with height.  Sounds like yours is width.

You could go with a wider screen :)  You've got a big room and you should be able to go quite large.

I'm planning on a 130" wide cinemascope screen.

Here's my screen wall plan.

 

 

Bill

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post #4 of 9 Old 03-21-2014, 04:30 PM
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Quote:
Originally Posted by jparker36 View Post

When using a Fixed Frame AT screen, do we need to be concerned that the metal frame of the screen will disrupt the sound from the L/R speakers? Like do I need to ensure that the speakers are either fully within or fully outside of the screen's frame?

Edit: Reason I'm asking is I'm thinking my LCR will be JBL 3252N's, and with their big size it looks like the L/R will have the screen edge somewhere right in front of the horns unless i push them out closer to the walls, or move them much closer to the center. With two subs up front, it will change the placement of the subs as well (between LCR or outside them in the corners)

You definitely don't want anything crossing in front of the horns. Id look up the suggested spacing of dolby and thx on placement. There are some threads with great suggestions on here. I'd recommend doing lots of research to not have regrets with your sound.
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post #5 of 9 Old 05-05-2014, 10:07 AM - Thread Starter
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Any thoughts about a large 1.78 vs a CIH 2.35 setup?
I'm thinking about a 115" wide 16:9 screen or a 130" wide 2.35 (100" wide 16:9).

With a JVC projector I think I could pull off either one, and I see the argument for a 2.35 screen. But a 1.78 means I dont have to do any zooming or messing around, and video games/tv/1.78 movies will be a higher use case than 2.35 movies. And even at 115" wide, 2.35 will still be a great size.

Would a 115" wide 16:9 screen be too big with seating positions at 10.5' and 16'?
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post #6 of 9 Old 05-05-2014, 10:07 PM
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No offence, but the questions you are asking lead me to wonder if you have the knowledge to assess your contractor's ability.
As this is your second theater and you are going to the expense of building a dedicated room I suggest that some professional advice be calculated into the budget.

Even so, I can't help but give my unprofessional opinion on your screen dilemma.
The pro's and the con's of 1.78 vs 2.35 litter the forums; "My 16:9 screen just doesn't give me the wide screen impact for scope movies." or "My scope screen is great for wide screen movies but it makes video games and regular TV look so small."
To me the best solution is to pick a screen ratio in the middle; not constant height, or constant width, but constant area. i.e. the Width X Height of a 1.78 movie will be about the same as the Width X Height of a 2.35 movie.
If you use a custom screen ratio between 2.0 & 2.1, then either of the common image ratio's will be optimized.
One added bonus when compared to the 2.35 screen format is that a constant area screen will provide more flexibility when mounting your projector. With a 2.35 screen the difference in zoom ratio between each format is quite large, which means there is less of your projector's zoom available to accommodate varying mounting locations. The constant area screen still eats up some of that zoom range but the difference is reduced. In fact, my constant area screen allows me to change between formats despite the fact that my BenQ W1070 has a lousy 1.3X zoom. (Without power anything I stand on the frame of my sofa to adjust it manually every time I watch a wide screen movie - a pain but the difference is well worth the effort.)

Of course, if you want to go all out and install masking you will need 4-way, which will be more expensive.

I'm surprised that more theater owners don't go for the constant area option. I have been using one for the past couple of years and love it.

Just my two pennies worth (a denomination that we don't even have in Canada any more). smile.gif

Good luck with which ever path you choose.

.
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post #7 of 9 Old 05-06-2014, 07:00 AM - Thread Starter
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I totally agree with you that I'm a bit out of my league. I did hire a contractor/designer for the acoustics who designs and builds professional cinemas - so I'm not worried about the soundproofing so much as the aesthetics.

Screen wise, 2.05:1 was my original plan, but I can't seem to find anyone selling AT 2.05 screens. I'll be placing a call to SeymourAV today to see if they'll make them one-off. This question was really more around people's thoughts about the complication of zooming. I dont think my wife will want to mess with it, so a 1.78 is tempting to just set it up once and forget it.
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post #8 of 9 Old 05-06-2014, 10:11 AM
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I really enjoy having the full envelopement of wide screen movies, but would never watch a 16:9 image that large.
Zooming for me is an absolute necessity. (Can anything in a home theater truly be considered necessary.smile.gif)
In fact as I wrote in my first post, I stand on the frame of my couch, between the cushions, and make the adjustments manually everytime I watch a scope movie.
If you buy a projector like the JVC that has motorized controls the process is as easy as pushing a button.
I am certain Seymour will custom make a screen, but if not you can buy the fabric and have your contractor whip one up.
I dont' think you will regret going 2.05 but everyone has their own priorities.

.
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post #9 of 9 Old 08-20-2014, 01:49 PM - Thread Starter
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I haven't been updating things on here at all, but the house design was finalized and we are deep into framing.

Final theater is a room within a room at 16x21 finished dimensions.
Sold all of my previous equipment and have purchased or planned to purchase the following:
Denon 4520ci
JBL 3677 LCR
JBL 8340a surrounds (2)
Sony HW40es

I decided to do 5.1 as a 7.1 setup didn't leave much clearance between the rear row and the rear surrounds. Mounting the 8340s in the rear corners will provide an IMAX-like setup and will give the best uniform coverage over all seating locations. Also allows the 8340 vs 8320s, which I understand is a major upgrade and better match to the 3677s.

I will be going with a simple 1.78 120" non-AT diagonal screen. 1.78 because video games + football are a large use case for me so I'm ok with letterboxing on 2.35 movies. If I hate it I can easily switch to a CIH setup in the future. Non-AT screen because it saves depth in the room to allow more distance to the seats, plus it saves quite a bit of money to free up my ability to get some subs. I was thinking of getting a JTR Cap, or a Submersive HP + to replace my old submersive. But in talking to Mark Seaton (and getting wife approval)... I'm about to order a master/slave of his limited run D18-11 (formerly known as the Terraform).

So two of these beasts will be on their sides below the screen, with the 3677s in between.


So these will hopefully be coming my way and teasing me for quite some time before I'm able to use them. But damn they'll be fun to have once I get up and running in December. Just waiting on final approval of the wife to place that order :-)
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