Originally Posted by Nalleh
First of all, as of today my second AVR is Denon 6200 replacing the 5200, so i now have HDMI 2.0 on both, and also DTS:X on both. So DTS:X can be played up to 11.1.8 same as Atmos.
For DTS:X you can only get this 'technically correct', if its down-mix from 4 to 2 height channels does not involve any base layer speakers. Given what DTS:X does when Heights are replaced by Tops (which is: 'leaking' height info to the base layer speakers), I expect this not to work properly.
For ATMOS, on the other hand, it can work 'technically correct', as ATMOS still extracts ALL height info from the bed channels if only one overhead pair is activated.
I do not play the second AVR's L/R!.
But if you want it 'technically correct' for ATMOS, you HAVE TO somehow use those 6200 L/R along with the 7200's L/R , as it contains part (in case of 'snap to front' even all) of the 'wides' sound, which you include in order to keep the correct balance in such summed-up system.
So the 7200 plays LCR, Wides and surrounds (@110). So the levels between these are correct.
Yes, within that 7200 configuration all levels are balanced. But since you add a second configuration (LCR, surrounds and rears on the 6200), you need to have that balanced as well. While the Center channel of both configurations contains identical info, the L/R channels do not, and simply level adjusting one set of them does not create the correct overall balance.
(However i could play the wides from the 6200 if i want, just a remote button away.)
Now that would be interesting alternative approach:
Activating Width speakers in both configurations (CONFIG-1: 5.1.4+wides, CONFIG-2: 7.1.2+wides), to subsequently:
(a) combine signals of both configurations to feed one set of Width speakers, or
(b) keep signals separate to feed an additional sets of Wides.
This last option would be my new favorite for using multiple AVRs/processors, as it enables a 13.1.4 lay-out:
- C + L/R at 25/30 degrees (from CONFIG-1 or CONFIG-2, as now they are identical)
- 'pure' Wides at 50 degrees (from CONFIG-2)
- Wides/Surrounds mix at 70 degrees (from CONFIG-1)
- 'pure' Surrounds at 90 degrees (from CONFIG-2)
- Surround/Rears mix at 120 degrees (from CONFIG-1)
- 'pure' Rears at 150 degrees (from CONFIG-2)
As this multiple AVR/processor set-up includes those 'Special Wides' or 'Surround-Wides' found in a Atmos 5.1.x+wides configuration, it could be referred to as SWATMOS, available in either 11.1.4 or 13.1.4.
Yes, but technically this is neither a correct, perfect or easy solution. But it does expand the 3D sound bouble.
As explained above, I believe it CAN be made 'technically correct' for ATMOS. Even more so, it will probably deliver an experience closer to that of a mixing stage or cinema, as it creates arrayed bed channel surrounds (3 pair, one of which shared with rears) and rears (2 pairs, one of which shared with surrounds).
If a Altitude doesn't sound better, i would be very, VERY surprised
The Altitude rules when it comes to spatial resolution. However, since it is still lacking the ability to array bed channel info over multiple surrounds or rears, SWATMOS may very well subjectively outperform the Altitude on enveloping sound in the base layer.
Yes, and if the goal is 9.1.4, the second one could just be a 5.1.4 capable.
No! You need the second one to be at least 7.1.2 to generate the ('pure') Rears.