Originally Posted by Hydra Spectre
Apparently, for a 15.2ch setup (Dolby Atmos/DTS:X/Auro-3D in one), it has to have top middle speakers in addition to front height and top surround, but can I have front wide speakers instead of top middle and it will still be recognised as a full 15.2 setup?
It only says you have to have top middle speakers in the manual.
First off, just to be clear, this is a 13 channel processor. You can CONNECT up to 15 speakers, but only 13 can be active at a time.
The additional connections are intended to facilitate Auro3D formats by allowing the extra speaker positions (especially Center Height + Top Surround) that are used by Auro3D and NOT used by Atmos, and it works out because the "extra" Atmos positions beyond 7.1.4 (either Front Wide or Top Middle) are NOT used by Auro3D.
So option one is a 9.1.4 Atmos layout + two extra Auro3D speakers. Atmos will use 13 speakers (the 9.1.4) and Auro3D will use 13 speakers (dropping the front wides in favor of the CH+TS). That's 9 speakers at ear level (LCR + FW + Surr + SurrBack) and 6 speakers above (FH + RH pairs used by all formats, CH + TS used by Auro3D).
Visually, it's this layout with the addition of Center Height (in between FHR and FHL) and Top Surround (directly above). Note that the front/rear overhead pairs need to be labeled "Height" instead of "Top" to ensure Auro3D compatibility.
The other option is a "7.1.8" layout with 8 overhead/height speakers combined with a standard 7ch ear level layout. In that case, both Atmos and Auro3D will play as "7.1.6" except again Auro3D can't use Top Middle and Atmos can't use CH/TS. This layout is depicted visually below:
It sounds like you're looking for the first option (9.1.4 Atmos + 13.1ch Auro3D) so yes, that works fine. Set the "Floor Layout" to "5ch & SB & FW", and then choose 6 height speakers and the "Front Height + Center Height + Top Surround + Rear Height" option for height layout.
Front Height will be connected to Height 1 output, Rear Height to Height 2, TS/CH to Height 3, and Front Wides will connected to Height 4 / Front Wide.