Thanks you have been very helpful. Denon 2400 will support only 5.1.2 so can’t plan 5.2. Spoke with Volumate he is willing to give for 13882. Asked him about Dali as well so mostly by tonight I’ll decide nd make the purchaseYes Sonus does a very good job . I have compared mounting Sonus in Front heights & Top Middle (On ceiling ) .Out of this Top Middle configuration was fantastic. Follow the spec of Atmos For Top Mddle -It should be mounted 65 degree to 100 degree from your Main Listening Position (MLP) .If your mounting 5.1.4 setup then follow 30 to 55 degree on either side from your MLP.Check the Figure Attached.