Aegir: 1st Audiophile Atmos DCI Room

[Peter CINERAMAX]

Achieving perfection on a budget is a PITA.

We have a hushbox in which we need to add this special short throw <35 feet 33% light efficient polarizer/light doubler, but as you know we are sticklers with lens optics and the barco 4k lens on short throw is sooo heavy that it wobbles with the projector's own vibration, so its' not 4k, nor 3k it's 1 k if left vibrating. This has been my central preoccupation for the least 48 hours...

[Peter CINERAMAX]

Here is the sketch of the lighting zones for the grafik eye. Note these information sketches for the shop drawings.



And here is the idea of the seating with a sofa in front...

[Peter CINERAMAX]

While Aegir is the first Audiophile DCI AURO-Atmos Room, just last week Jeff the Bland fired up his theater using our Auro Atmos Processor with Seaton woofers and what is the maiden installation IN THE USA of the Quested LT series Loudspeakers that I have been evangelizing all along are the ideal loudspeakers for Multichannel 3D audio.



Here are some comments from Jeff, which he was too kind to give me credit for. The Concept though has been finally proven outside of Moscow. This gents and ladies is a true milestone in My Career, Aegir though will be the finest performing DCI Screening Room for quite a bit during the 21st century and along with Jeff's the beginning of the end of horn based system for Motion Picture playback.


"Quote:
Originally Posted by CINERAMAX View Post
Gratuitous cross post:
Field Report from Jeff's calibrations yesterday. Congrats Jeff!

"Success!

I really like AURO-3D. We started working right after lunch and didn't wrap until late, late night early morning. However it was very much worth the effort. We had 6 active subwoofers in that room arranged as 2 x mono with BM. I convinced Mark Seaton to turn off the DSP correction that he usually applies to his subs and he gracefully complied. Dirac did a great job. We measured the results using a TEF measurement system that Mark had brought. We were pleased to discover that the subs were flat to 5Hz in front and flat to 10Hz in back at reference levels. You just don't get better than that!

Those Quested loudspeakers melded well with Mark's subwoofers. The dynamics and detail of the end product was truly outstanding. We listened to several samples from live concert recordings to U571 and War of the Worlds. It was all good. Did I mention that I really like AURO?? Ha, ha ...

Best Regards,
Carl Huff"
Peter,

These were your recommendations. You are a savant! I am so pleased. Worth all the effort! I know why you service the tip top! My system is truly cutting edge now. You really nailed it with the Questeds. We listened well past reference and no fatigue and incredible dynamics and dialog.

Well, Auro is the real deal. I'll have more to say later but the Quested/DATASAT combo is a winner and DTS MA 7.1 / TRUE HD 7.1 simply doesn't it anymore.

We had a very good install last night with Mark Seaton and Carl Huff working 12 hours to dial in the system.

As good as the equipment is, the before and after listening with the two calibrators is what clearly made the difference.

I am so pleased, I'm actually still in disbelief as to to the sound in the room. I can't imagine better - anywhere. What a job those two did. Marks' subwoofers are a true benchmark. Pounding tight, punch. I am disconnecting my Buttkickers and bass shakers. "

"Peter,
Thanks for your advice and recommendation on the Questeds. Super loud, but clear and non fatiguing. Incredible impact. You were absolutely right on all accounts!!

DIRAC really did a super nice job. A slow process as it requires a lot of computing power I learned. I think Carl did 6 or 9 sweeps of all 13 channels."



Thanks to Jeff, we had been toying with this idea since November 13 calling quested from the icy rooftop of the St Pete Tower in Moscow and what hard work since then, to see these incredible end results is truly satisfying.

[Peter CINERAMAX]

ALBIORIX:

[Peter CINERAMAX]

Jeff's LT-10 with AMT driver for Far field behind the screen positions, and LT-8 for mid field surrounds, the LT24 is the long horizontal used for height channels on a 45 degree.



For Aegir the top lt-8's will be weaponized with a new smaller wide dispersion AMT, and fed 2 way instead of 1. there will be 10 of these 3 per room side surrounds, 2 in ceiling Atmos/Auro and 2 on back wall surround.

In addition the Lt-10's (bottom) will be modified for time alignment of the drivers centered as the main lcr's. one way still.

a pair of the lt-24's will be on the projector fascia as the rear height Atmos channel. Exactly as Jeff used above back. there will be 4 (2 horizontal-2 vertically oriented) of a similar speaker than the Lt-10 output-wise  but with a more comfortable form factor like the lt-24: The Lt-28.






These will be deployed as ATMOS AURO height channels behind the screen (or if structurally possible attached to the upper frame of the screen masked.

And they will also be used for ATMOS behind the screen on corners tilted in, in lieu of the just in front of the screen Atmos width channels that are toed in in 45 degrees in atmos cinemas (just in front of screen in cinemas, just behind the screen Aegir).

[Peter CINERAMAX]

Look at that view. Maybe we should add a remote camera on roof to see the boats on the big screen...

[Peter CINERAMAX]

This is the back of napkin drawing....



3 lt-10's modified for centered driver alignment (they say it wont make difference)
5 lt-2-8's (widths in atmos), 3 heights (2 for atmos 3 for auro)
10 LT-8 2 way with AMT (3 per side surround, 2 back surrounds and 2 ceiling atmos/auro VOG.
6 18 inch "volt "high power subs. left and right , 3 for lfe, and 1 for rear time delayed adjusted.
2 lt-24 mounted on front of projection box for atmos height rears.

Quested amps:
4 x 9502- behind the screen channels
6x 3004- surround and in room height channels
1x 28004 4 subwoofer channels

total channels: 32 Holly Guacamole...

[Peter CINERAMAX]

While Aegir is the first Audiophile DCI AURO-Atmos Room, just last week Jeff the Bland fired up his theater using our Auro Atmos Processor with Seaton woofers and what is the maiden installation IN THE USA of the Quested LT series Loudspeakers that I have been evangelizing all along are the ideal loudspeakers for Multichannel 3D audio./
<\q>

Jeff is going to have an HT meet in autumn after CEDIA and guess who's going to be there?



Roger Quested himself, he reminds me of winston churchil a bit.

[Peter CINERAMAX]

first glimpse of cinema

[Peter CINERAMAX]

During Cedia we met with Brett Crocket Atmos Capo who gave green light to a minimal frame bottom up masking fom 2.0ar all the way to Ben Hur-UltraCinemascope (The biggest screen possible to fit the room).

He explained that both the forward height ceiling channel pair AND the first Or only front sidewall Width channel would work perfectly behind such a wall to ceiling mega-screen.

WE ARE AWAITING SKETCH FROM SCREEN MAKER (ex SMX engineering/production /and installation engineer who quit smx 3 months it went under.

[Peter CINERAMAX]

One thing that the Atmos engineers stressed would be better for height channels instead of horizontal D'appolitos array (Sidemounted MTM) designs is the preference of coaxial drivers speakers, I presented Roger Quested with this dilemma yesterday and suggested this type or array, to be produced with a 12 inch woofer and a large AMT. He did comment that this East German speaker when playing very loud the dustcap hits the mid hi assembly, but he agreed to do the concentric AMT for Europa, which we might as well implement herein for the 5 mains (lcr and widths).The LT-112?CC?



So never before seen Atmos Screen, Never before seen Atmos Main Far field monitors, and the list shall continue....

[Peter CINERAMAX]

revisions, side front speakers removed, extra pair in ceiling lined up with surrounds.

before/after (platform slid forward to accommodate stretched hushbox housing advanced polarizers.

[Peter CINERAMAX]

before here

[Peter CINERAMAX]

We need to calculate the electrical load for the Quested amps. First we will determine which speaks go where.

5 front BEHIND THE SCREEN (including widths as per meeting with Dolby) Z16's (not equidistantly spaced but according to formula given to us by senior Atmos Lab Rats under the direction of Brett Crockett. Each Z16 uses up an entire single  AP300-4 power amp (one channel bridged to 950) and two at 300.(5 times 3 amps power at 120 volt)

BLURB ON AP-300-4 AMP which consumes at 120 volt 3 ampere (applies also to AP-750 which needs 120 volt 3.8 amperes)
Conventional analogue level controls help deliver the cleanest sound available coupled with ultra-high standards of reliability. The AP Series’ proprietary control and protection circuitry continuously checks for fault conditions including shorted outputs, DC on outputs, excessive temperature, and component failure. If such an event occurs the outputs are disconnected, saving expensive driver repair bills.

Sophisticated 'side chain' limiters prevent distortion and speaker damage but are out-of-circuit until the onset of clipping. The control circuitry provides full protection against inrush current limiting with delayed 'turn on'. Low noise vari-speed fans are utilized to minimize mechanical noise, making the AP Series an ideal choice for live theatre. lt series and z series crossover cards available.

2 z8 as heights BEHIND THE SCREEN also according to clearance from above named technical brass. (1 times 3 amps power at 120 volt)

6 Zeilings single channel coaxial uses 1.5 of AP-300-4. (2 times 3 amps power at 120 volt)

10 z8 surround speakers x times AP-300-5 is 10 speakers.  (5 times 3 amps power at 120 volt) TOTAL 39 amps at 120 volt on ap-300-4

front subs  One ap-2800. 14 amps at 120 volts

rear subs Two bridged ap-750. 3.8 amps each total 7.6

TOTAL power circuits 60.6 ampere

HEADLINES:

as I wrote this I heard from MC2 audio the oem manufacturers engineer:

Hi Peter,

I have made some enquiries , The amplifier performance would be improved slightly buy using a higher input voltage (220/240v) due to the lower currents involved and better VA rating. I hope this helps answer the question for you.

So I shall power at 240 volts 60 hz then which halves the amperage. 33 amps 220 volt USA

[Peter CINERAMAX]

To have enough juice just in case...
We will calculate loads with an expanded lt version of the system:

5 lt-10's modified for centered driver alignment (they say it wont make difference) including LR heights Atmos/auro/dtsx BEHIND SCREEN-as per ATMOS PREMIER concept
3 lt-2-8's (2widths in atmos), 1 center height (1 for auro dtsx)-BEHIND SCREEN as per ATMOS PREMIER concept

10 LT-8 passive (3 per side surround, 4 back surrounds)
9 zeiling (ceiling 8-atmos 1 dtsx/auro VOG)

6 18 inch QSC-118 high power subs. left and right , 4 for lfe,
2 zub's for underplatform (2 rear sub zones)