View Full Version : Blending or Stacking or both


MadMrH
07-14-07, 03:57 PM
My Home Cinema room is nearly finished in its final system, or what should be its final system for some time.

Im just kidding with the title here ;) I only intend to Blend a pair and use the others as a coffee table :eek: .

But for now heres a quick tease photo or two

http://i16.tinypic.com/66l3yx1.jpg

http://i8.tinypic.com/4m8tohl.jpg

Thats not all of em :o

I dont think ive ever posted my entire system on AVS so here a quick lost of most items..............

Video system
HD SDI modified HD DVD player
Gefen HD SDI to DVI Scaler (1080i to 1080p for above)
TVONE C2-7200 blender and scaler
Currently 2 x Graphics 1209s soon to be 2 x 909 (Actually I have 4 x 1208s/2, 1 x 1209, 5 x 1209s, some 909s - Er! :rolleyes: I can quit any time , Just not today dear :p )

Audio System

Mark Levinson Transport
Lexicon MC12B pre amp http://www.lexicon.com/products/specs.asp?ID=1
3 x Bryston 7B ST Monoblock amps http://www.bryston.ca/7bst_m.html
2 x Bryston 7B SST Monoblock amps http://www.bryston.ca/7bsst_m.html
4 x Tannoy D700 speakers
1 x Tannoy D750 center speaker
5 x Tannoy ST200 Supertweeters
2 x REL Stentor III subs (Front)
2 x REL Storm III (Rears)
ALL interconnects are Kimber KS1130
ALL speaker cables are Kimber Bi Wire 8TC - Exception is Supertweeters which are Tannoy silver cable.

I also have a pair of Tannoy Buckinghams for when I get my stereo room completed (Back from being a PJ test room!)

Screen is a Screenline 16:9 fixed screen 8 foot wide - this is about to be changed for a Stewartfilm Snomatte - Im working out which one to get - 2.35 fixed, Horizontail electri mask, 4 way mask, or Directors Choice

Seating is 12 seats that came from the Walt Disney preview theatre in London, 16 bass shakers under them that I have never really used. They are arranged in 3 tiered rows of 4.

Room is currently getting the finishing touches of fully treated acoustic foam on all walls and ceiling, with a black fabric over the top.

alan halvorson
07-14-07, 07:20 PM
I'm so glad you went for a professional mounting system. And outdoors, too.

I've totally envious. Good thing you're in London; I'm feeling a bit larcenous lately. The one thing I wonder about is that 8' screen. Considering all your stuff, especially the 12 seats, it is puzzling. Do you have some width restriction? Two blended 909's on an 8' wide screen seems so wrong.

If I got myself another pj, I could do this too, although it I'd have to go for another Barco 808 or Sony G70. Someday, I will find a TVONE something in my price range - I'm lucky that way.

MadMrH
07-14-07, 07:36 PM
Hi,

The seats are true cinema style seats so very close togeter with a 2 inch armrest - Not like the large seats in say Cliffy's, Art's Clarance etc.

And yes im limited to an 8 foot wide screen due to space in the room.

I could go to just over nine foot but would have to use a perf screen and I just dont like them - I see the weave or perf of the screen, and I notice the reduced audio quality, So for me its gotta be 8 foot wide.

Now I know Gino, Andres, Tim and others all have large blends, and large room to go with them. But I have to say that if you saw the picture on an 8 foot screen then I think you would be happy.

Recently at a show it was remarked that with the Hi Def media brings a new viewing distance - you can sit closer to a screen than standard def as the image is so detailed.

My front row of seats is really there to help create the cinema atmosphere, I sit in the middle row and like the feel of a row of seats infront of me.

I'm so glad you went for a professional mounting system. And outdoors, too.

You know I really should have stuck a quick screen up and some of my decking seats and made an April 1st post with that picture :D ....................They were just resting there as they came out the packing and were checked over.

overclkr
07-14-07, 09:03 PM
That is some serious ass horsepower you have there Andy.

Cliffy

antorsae
07-15-07, 05:20 AM
Andy - you are going to get an incredibly (bright) blending or stacking two 909s for a 8' screen!

If I was in your shoes, I'd probably go for stacking for a screen of that size. Blending adds its complexities regarding setup (color matching being the primary one I think) and imho it's worth when you really need a lot of light for a huge screen. Looks to me that you have plenty of light horsepower with those (4???) 909s even if not fully using the whole raster; as well electronic horsepower for perfect geometry/convergence.

With mint tubes, other option you might want to try and possibly only doable with 909s would be edge matching.

Gino AUS
07-15-07, 07:22 AM
Ignore Andres Andy, you want cinemascope, you want super resolution and framerates, sharpness, you know you want to blend ;) (Not that you need convincing) With such a "small" screen, you'll have more light than you'll know what to do with.

MadMrH
07-15-07, 07:26 AM
That is some serious ass horsepower you have there Andy.

:D

Nope Cliffy, This is serious horsepower ;)

As I bought her.............

http://i15.tinypic.com/6bm4ew2.jpghttp://i15.tinypic.com/5zpsvx2.jpg

The First body shell design (spoiler a little Too good at downforce!)

http://i19.tinypic.com/6gbs4js.jpghttp://i12.tinypic.com/5358glf.jpg

Final shell as she is now................

http://i12.tinypic.com/4p0k3v7.jpghttp://i8.tinypic.com/4uj9qfd.jpg

MadMrH
07-15-07, 07:27 AM
And a quick demo of "Mad smokin! it" :cool:

http://i11.tinypic.com/62ymt0k.jpghttp://i18.tinypic.com/6f4xjbl.jpg
http://i16.tinypic.com/67e9mci.jpghttp://i8.tinypic.com/642h15l.jpg

And when the smoke dies down heres the interior

http://i9.tinypic.com/6bllw8o.jpghttp://i10.tinypic.com/52mo03p.jpg

.............And now back to blending........................

MadMrH
07-15-07, 07:45 AM
Andy - you are going to get an incredibly (bright) blending or stacking two 909s for a 8' screen!

If I was in your shoes, I'd probably go for stacking for a screen of that size......

......With mint tubes, other option you might want to try and possibly only doable with 909s would be edge matching.

The room is now (almost) totally black fabric covered, this reduced reflections and allows a brighter image without lighting up the entire room. Currently 2 x 1209s units are running and its not too bright - I also currently have a 1.3 gain screen, I am ordering a 1.0 unity gain screen that will reduce brightness BUT will also reduce the use of contrast modulation and that will bring the grightness back up, my current thought is that I will end up with similar brighness as I currently have.

Stacking on an 8 foot screen in my opinion is not the best option - as you sit much closer to the screen ANY slight off convergence/focus issues are seen more - Stacking is for the larger screen im sure of that.

Edge matching - I install a number of 14 PJ edge matching 360 deg systems each year, blending has advantages over edge matching - for a tripple PJ projection then yes edge matching would be watchable - I can setup the 909s at some point with edge matching thats pretty easy to do with my scaler, and im alwways trying new ideas as thats the only way I feel you can really be sure about something and learn new things along the way.

I have spent around the last 2 years working on blended systems so I do think that is the way to go, I always said if I was not happy with a blend of 909s that I would go back to one, my results with the 1209s are fantastic as are those of Andres, Tim, Gino and others so im pretty sure blended 909s will be sticking around.

Thank you for your input here, Although im still gonna do it "My way" I do take on board others comments.

MadMrH
07-15-07, 08:04 AM
Ignore Andres Andy, you want cinemascope, you want super resolution and framerates, sharpness, you know you want to blend ;) (Not that you need convincing) With such a "small" screen, you'll have more light than you'll know what to do with.

Cinemascope is the way im gonna go, Im considering a 4 way masking screen so I make this the last screen I ever buy and future proof - Or at leat to last a long time.

I wish I had seen Arts & Cliffs Stack - the one thing people mention and is clear from the pictures is the "WHITE" whites, and that is also fairly obvious in the blend zone - thats a hard area to get right as the whites really shine out.

Here are my other thoughts about the "bright light" question........

Currently I have to defocus the blue as it runs out of steam at high IRE's when running a high contrast (61+), upto about 60 contrast the blue does keep up.

Colour filtering red/green is said to loose about 20% or light output so that will help the blue keep up and reduce overall light level.

A 1.0 gain screen will also reduce light level from the "norm" 1.3 gain screens used for CRT.

With that comes reduced use of Contrast modulation which im sure Gino will agree is one of the "must have" items for a perfect blend.

ALSO if you check the specs on Curts site the Cine9 runs 1200 peak lumens, the 1209s runs 1250 peak lumens - So the Cine9 is not as bright as the 1209s - OR lets say that they are at least the same/similar - Actually my Runco DTV1200 (cine9) manual says 1300 peak lumens but still in the "Similar" area.

If I think its too bright I will of course mention this here, Currently I think I will be happy. Having run 1209s units on an 8 foot screen as single projection then blended 1209s I do like the gain in light output I have, a 14 foot wide blend will have about 8 foot per projector in a blended setup - And I can say that I would prefer (and do) a higher light output, The thing is we all get used to different things. For me my daily work usually involves projection setups, as we do so much digital work these days I get more used to the high light output.

But its still CRT for me :) .

overclkr
07-15-07, 11:35 AM
:D

Nope Cliffy, This is serious horsepower ;)

As I bought her.............



The First body shell design (spoiler a little Too good at downforce!)



Final shell as she is now................



Nice!!!!!!!

Here is my mid life crisis:

http://www.pontiac.com/images/gallery_v2/grandprix/07_ext_profile_lg.jpg

http://media.gm.com/us/powertrain/en/product_services/2007/Photo%20Library/Gen%20IV/Gen%20IV%20Car/07%205.3L%20V8%20LS4%20GXP%20LoR.jpg

http://server1.texasdirectauto.com/south_pics/2G2WC55C771166665/DCP_0009.JPG

I'm hoping in the near future to either supercharge her or pop nitrous in to really make her a sleeper. :cool:

Cliff

MadMrH
07-15-07, 12:07 PM
Nitrous ;) - Then you start to get into remapping and Nitrous pre turboS and it all goes a little too fast too furious and im back to being 21 again :cool: .

I really want a Chrysler 300C touring in black, Black windows and large chrome rims - Not just to look like a drug dealer :rolleyes: , Oh! and add hydrolics as well for fun :o No, Andy , Grow up, those days have gone :confused: .

garyfritz
07-15-07, 12:29 PM
Nahh, Andy. Words of wisdom:

Growing old is mandatory. Growing UP is optional!!!

("HI SNOG" !? :))

MadMrH
07-15-07, 01:22 PM
"HI SNOG"

UK plate H15 NOG , Reads Hi Snog and seems to attract female traffic officers :D .

I also used to own J16 ALO . (gigolo)

Im a Tart :p .