so I have a denon avr-s920w, which supports atmos, but I have no idea how to do an atmos set up. I currently have a 5.1 system going. It looks like the atmos speakers would connect to what is labeled as "surround [L/R]". What are some decent entry level speakers for atmos?
I see that some are ceiling mounted and others are like little pods that fire at the ceiling?
I'm guessing that the ps4/PC I have connected wouldn't really use them at all, since it's different than a "traditional" 7 speaker set up (also I dont even know if a ps4 supports 7.1)
With that receiver you can do a 5.2.2 setup max (Five normal speakers, up to two subs, and two atmos speakers).
You would connect your two atmos speakers to the rear surround connections, going by the manual:
http://manuals.denon.com/AVRS920W/NA/EN/GFNFSYgobaybmw.php
Also, and this is very important, you need to make sure that you configure the speakers in your receiver to be dolby atmos speakers for the type you get (IE upward firing modules, height speakers, or ceiling speakers).
There are three options for atmos, the easiest is the upward firing modules, which you can sit on your front speakers or rear speakers, these fire sound at the ceiling and reflect it down.
A good set of these are the Elac A4's for example which aren't that expensive (around 180/pair).
Then there's height speakers which you mount on the wall in front or behind you, the SVS prime elevations are an example of this:
https://www.svsound.com/pages/prime-elevation
Lastly there's the in-ceiling or ceiling mounted option, which is the best but also the most expensive option
Each of these process sound differently, that is why it's very important that you make sure you tell your receiver which type of atmos speaker you have connected, as an upward firing module will need to send sound differently then an in-ceiling one.
Personally I went with the Elac a4's myself and it works fine, I mean I'd LOVE to have ceiling mounted speakers for atmos but it's just a lot of work and money to get that.
If you are only using two atmos speakers I recommend making them front. In the future if you upgrade your receiver to one with more channel support you can add more atmos speakers to your system.