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I understand from your posts that you have two different rooms and are seeking advice on the best speaker configuration and placement for both. As you’ve outlined a few options, I’ll try to cover them all in this answer as best I can.
For Room 1 (length 10.58 m, width 4.9 m, height 3 m):
Given the long and narrow shape of the room, I would consider a combination of shortening the speaker layout length (the distance from the front speakers to the rear speakers), moving the mix position forward, and using speaker delays to increase the effective width.
If you have the flexibility to do this, a good starting point would be to move the mix position to about 4 metres and move the rear surrounds forward to 7.70 metres. This will make the rear surrounds equidistant with the left and right speakers. You can then use moderate speaker delays on all other speakers to make them appear equidistant. Please see the attached screenshot.
With regards to your previous posts, I would suggest that the room doesn’t really warrant the use of array mode given the dimensions. Generally speaking, we’d expect to see this used in rooms nearer 10 metres in width. There is some merit in choosing 9.1.6 over 7.1.6 or 7.1.4; however, all configurations would work well, so this may come down more to a budgetary choice.
One important point to mention is the choice of LFE subwoofer. I would say that the iLoud Sub is going to be significantly underpowered for this room. The demands on the LFE channel are generally quite high, and the specification of the unit is 106 dB SPL peak at 40 Hz. This likely means the sub would be around 25–30 dB too low in level, so we’d recommend looking for a more powerful unit.
For Room 2 (length 5 m, width 4 m, height 3 m):
The speaker layouts provided both look good. Again, 7.1.4 and 9.1.6 would work; however, I’d probably lean towards a 7.1.4 for a room of this size. I think you will also have the same issue with the iLoud Sub being approximately 20 dB too low in level.
Hope this helps. Please shout if you have any follow‑up questions.
Matt
Thankyou so much for your reply. This is extremely helpful - and good to know I am on the right track. I cannot think of any other questions for now as you've given me some great information. I will ask if anything else comes up.
Appreciate it!
Nicole
The KH810 II is included in the DARDT v6.7.0 database, so you should be able to select the model and see how much headroom it has above your target SPL. For larger rooms, it’s fairly common to need more than one subwoofer. Just keep in mind that DARDT’s performance predictions are simplified estimates, so we’d generally recommend working with a reseller, studio designer, or acoustician to make sure the system is a good fit for your space.
The recommended monitoring level for a Dolby Atmos home entertainment studio is 79 dBC, so no concerns there! For additional information on monitoring levels, you might find this article helpful: https://professionalsupport.dolby.com/s/article/Is-85-dBC-the-recommended-monitoring-level-for-Dolby-Atmos
Let me know if you have any other questions.
Cheers,
Emma