Dolby Atmos Theatre System - Page 45 - AVS | Home Theater Discussions And Reviews
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post #1321 of 1343 Old 01-05-2015, 05:58 AM
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wow CINÉRAMAX your installation is the best ,very nice.
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post #1322 of 1343 Old 01-14-2015, 12:21 PM
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Excited to hear this but also a bit unhappy for the home theater owner as it appears to mean the necessity of getting a whole new processor that is Atmos enabled and replacing all 5.1 and 7.1 Blu Ray discs with the versions of the film that will enable Atmos to do its things. I have a 7.1 system and hundreds of Blu Rays that would need replacing; that's a lot of $, Still I can't wait to go to a theater that has this system installed.
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post #1323 of 1343 Old 01-14-2015, 03:16 PM
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Quote:
Originally Posted by Steve544 View Post
Excited to hear this but also a bit unhappy for the home theater owner as it appears to mean the necessity of getting a whole new processor that is Atmos enabled and replacing all 5.1 and 7.1 Blu Ray discs with the versions of the film that will enable Atmos to do its things. I have a 7.1 system and hundreds of Blu Rays that would need replacing; that's a lot of $, Still I can't wait to go to a theater that has this system installed.
Yes, you need a new surround processor (and hopefully one that includes DTS-X), but as for replacing your discs... I doubt many will be remixed or re-released in Atmos (mostly new titles). It may be another story with Ultra HD Blu-ray (but then you also get more detail and better color and increased dynamic range besides the possibility of a better sound format).

Listen up, studios! Just say "NO" to DNR and EE!!
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post #1324 of 1343 Old 01-20-2015, 12:06 AM
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i belive stereo always better no sound lag or skipping always best 2 large fat 350watt do it on 100w Equipment use Television to get bet sound out really worth it almost free
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post #1325 of 1343 Old 01-23-2015, 11:10 AM
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Cool Here is the first quested z series ATMOS -PREMIER soundstage

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Originally Posted by zimmo View Post
wow CINÉRAMAX your installation is the best ,very nice.
Thanks! this one WILL IMPACT THE QUALITY OF LIFE OF MILLIONS, I HOPE.

PROTEUS IS A HIGH SPL LOW FATIGUE ATMOS-PREMIER RANK SOUNDSTAGE.

28 BIAMPED Z-8'S 300X2, 3 TRIAMPED Z 16'S 600+300+300, 7 QSB18 SUBS LCR +.1ZONE
4 ZUBS IN 2X FOR .2 RIGHT REAR ZONE, 2X FOR .3 LEFT REAR ZONE.

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post #1326 of 1343 Old 02-03-2015, 12:42 PM
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What current receivers will do 7.1.4
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post #1327 of 1343 Old 02-03-2015, 01:36 PM
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Quote:
Originally Posted by mfranke View Post
What current receivers will do 7.1.4
Denon X5200W & X7200W
Marantz SR7009 (+ AV7702 & AV8802 pre/pros)
Yamaha RX-A2040 & RX-A3040
All of the receivers above need 2 channels of external amplification to be added to support 7.1.4.

Onkyo TX-NR3030 (+ PR-SC5530 pre/pro)
Integra DTR-70.6 (+ DHC 80.6 pre/pro)

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Marantz SR7009+MM9000/Atmos 7.1.4 (FH+TM:DefTech PM1000)/LCR+TM amped
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post #1328 of 1343 Old 02-03-2015, 01:36 PM
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Quote:
Originally Posted by CINERAMAX View Post
Thanks! this one WILL IMPACT THE QUALITY OF LIFE OF MILLIONS, I HOPE.

PROTEUS IS A HIGH SPL LOW FATIGUE ATMOS-PREMIER RANK SOUNDSTAGE.

28 BIAMPED Z-8'S 300X2, 3 TRIAMPED Z 16'S 600+300+300, 7 QSB18 SUBS LCR +.1ZONE
4 ZUBS IN 2X FOR .2 RIGHT REAR ZONE, 2X FOR .3 LEFT REAR ZONE.

Insane, but in the best possible way!!!
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post #1329 of 1343 Old 02-03-2015, 01:47 PM
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Would the Onkyo 1030 do the same thing with a separate amplifier? Could I use my current receiver which is a Onkyo 626 as the seperate amp for the 1030
Thanks
In over my head
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post #1330 of 1343 Old 02-03-2015, 02:07 PM
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Quote:
Originally Posted by mfranke View Post
Would the Onkyo 1030 do the same thing with a separate amplifier? Could I use my current receiver which is a Onkyo 626 as the seperate amp for the 1030
Thanks
In over my head
The TX-NR1030 can drive 11 speakers (7.1.4) if you add an external 2 channel amplifier. Receivers work fine as stereo amps. You just have to be careful not to accidentally change their settings while using them that way.

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post #1331 of 1343 Old 02-10-2015, 07:48 AM
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only onkyo tx-nr3030 has 11 channels.
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post #1332 of 1343 Old 02-11-2015, 10:38 AM
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Dolby also came up with 'Dolby Atmos Enabled' speakers, those are active speakers with a second cable going to the traditional speaker, these speakers fire up. That takes care of the additional amping. Little volume difference with in ceiling speakers. Not for smaller commercial size theaters like these, but for the more regular home they do work.

Caveat, I am not an audiofile, nor do I have young ears;-).
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post #1333 of 1343 Old 02-11-2015, 11:10 AM
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"Dolby Atmos Enabled speakers" for the home are *not* active. I.e. they have no built-in amplification. They are a passive speaker design containing a specialized filter network which provides a psycho-acoustic notch to help make their sounds seem to come from overhead. I suspect there's nothing preventing any particular speaker manufacturer from implementing them in an active design, though.

Details are in Dolby's patent, which can be read at http://www.google.com/patents/WO2014107714A1?cl=en

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post #1334 of 1343 Old 02-11-2015, 12:02 PM
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Thanks for the clarification, it is just the built-in processing.
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post #1335 of 1343 Old 02-14-2015, 08:21 AM
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I'm confused regarding the placement of ceiling speakers for Atmos. 7.1.4 is a subset of the full 24.10.1 configuration but with 9.1.2 the location of ceiling pair is shifted. I can see where it makes sense to relocate the ceilings if there are only going to be two but it makes 9.1.2 a dead end.

I'm assuming multichannel amplifiers are going to come down in cost over the next 5-10 years and since sheetrock is if not forever at least something I'd rather not tear out if I don't have to whereas wire is relatively cheap I'd rather err on the side of wiring for a location I never use than have one I can't get to.

That doesn't seem to be a problem with the head level speakers because less channels doesn't change a speakers location to off the grid. But this isn't the case on the ceiling. If you install 7.1.4 and decide that more channels is worth it you can just add more but if you install 9.1.2 and as costs drop it becomes clear that 4 or 6 ceilings is a nice step up you have to tear out what you've installed and move the speakers.

It's a long thread so perhaps I missed it but has there been a discussion of this?
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post #1336 of 1343 Old 02-14-2015, 08:55 AM
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Why not wire for all 10 overhead locations?

Remember that the ..2 overhead speakers normally would be in the Top Middle location, the central pair of the overheads. There wouldn't be any need to rip them out if you eventually decide to expand to a ..6 configuration, for example.

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post #1337 of 1343 Old 02-14-2015, 09:53 AM
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post #1338 of 1343 Old 02-14-2015, 12:58 PM - Thread Starter
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Quote:
Originally Posted by sbe View Post
The location of the ceiling mounted speakers in relation to the head mounted ones is not consistent between 7.1.4, 9.1.2 and 24.1.10

Perhaps Dolby is just fudging the drawing but the location of the ceiling mount speakers in 9.1.2 is way different than where it would need to be shown to comport with the full bore 24.1.10 layout.
The height speakers locations are not related with the main surround speaker locations.

Quote:
But 2 is shown just forward of the second speaker in front of the left side whereas in 9.1.2 its way further back than that.
These "artist renderings" are not showing the possible location ranges for the height speakers. The Top Middle speakers can be forward, even with, or behind the listener.

Deadwood Atmos theater [HTOM]
AV7702 Atmos 7.4.4, SSP-800 PLIIx 7.4
Aerial Acoustics 7B/CC3B fronts, B&W CWM8180 surrounds, Tannoy Di6 DC heights, Hsu ULS-15 subs
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post #1339 of 1343 Old 02-14-2015, 01:22 PM
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I don't see how that works out.

If you delete speakers from the 24.1.10 grid until you yield 7.1.4 it works fine. The drawing matches Dolby's drawing for that configuration.

But when you try to do the same for 9.1.2 the location for the ceiling pair doesn't match. To stay on grid you either have to choose the ceiling pair inline with the seating position or much the ones further forward towards the screen neither of which are in the same location as shown on Dolby's drawing for that configuration.

So either Dolby's drawing for 9.1.2 has fudged the location of the ceiling speakers or Dolby uses a unique position for that setup.

Would you care to hazard a guess which?
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post #1340 of 1343 Old 02-14-2015, 01:29 PM
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Quote:
Originally Posted by Roger Dressler View Post
These "artist renderings" are not showing the possible location ranges for the height speakers. The Top Middle speakers can be forward, even with, or behind the listener.
I just want to make sure I'm following you. Dolby calls the ceiling mounted speakers Front, Middle and Rear Overhead.

Are you saying that when a configuration calls for only a single pair of Overhead speakers that it doesn't matter if they are forward, even or behind the listener?
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post #1341 of 1343 Old 02-14-2015, 03:10 PM
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Quote:
Originally Posted by sbe View Post
I just want to make sure I'm following you. Dolby calls the ceiling mounted speakers Front, Middle and Rear Overhead.

Are you saying that when a configuration calls for only a single pair of Overhead speakers that it doesn't matter if they are forward, even or behind the listener?
Dolby's documentation (see the attached screengrab) allows for the Top Middle speakers to be anywhere from 25 degrees in front to 10 degrees behind the vertical. People who've tried various locations report that somewhat in front of the seating sounds best.

Edited to add: the Dolby documentation is available at http://www.dolby.com/us/en/technolog...guidelines.pdf

P.S. Please note that this is the thread for discussing commercial theatrical implementations of Atmos. The home theater thread is at The official Dolby Atmos thread (home theater version)
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post #1342 of 1343 Old 02-14-2015, 04:59 PM
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Quote:
Originally Posted by Selden Ball View Post
Dolby's documentation (see the attached screengrab) allows for the Top Middle speakers to be anywhere from 25 degrees in front to 10 degrees behind the vertical. People who've tried various locations report that somewhat in front of the seating sounds best.

P.S. Please note that this is the thread for discussing commercial theatrical implementations of Atmos. The home theater thread is at The official Dolby Atmos thread (home theater version)
Ah, thank you so much. I was working off the September rather than October 2014 version of that same document which didn't contain the information you pointed me to nor the 9.1.4 configuration.

Sorry about posting in the wrong forum. I'll post any additional questions in the appropriate place.
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post #1343 of 1343 Old 02-17-2015, 09:47 PM
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Hi guys - I am designing a new theater and would love to see what you think about my options for Atmos in this setup. I'm not sure what would work best, 7.1.4, 9.1.2, 2 subs, maybe prewire for 7.1.6 or 9.1.4. Also not sure how well suited this layout is for the height speakers and particularly how that may sound for the second row. Details including a model of the design are here: New theater design project - your input needed please . Thanks in advance!
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