Oh my goodness! I would call that 7.8.4! The subs in the Ones are no joke. How are you using the Aon 3s? Are they at the corner of the wall and ceiling or just hanging from the ceiling? What receiver are you using? Do you have an amp? I was planning on using HTR 7000s for Atmos. Any reason you went with the Aon 3s?

At the moment the Aons are behind the couch.
When the set of Tritons will come, they will replace the Aons.
For now I won't be putting Atmos speakers because we will be moving later this year.
I am just getting prepared to have all the equipment ready.
I use a Marantz SR7011 but I have ordered a 6 channel Class D amp with Hypex Ncore500 modules.
From what I've read, these are considered to be some of the best amps you can buy.
Also looking for a pre pro but that is an extremely difficult choice.

Where did you get that amp from and how did you order it?

This amp is made by the local dealer of Hypex (in Greece).
I don't know where you live but nordacoustics from UK make various implementations with Hypex amps.

www.nordacoustics.co.uk/nord-one-hypex-mp-multichannel