Two Airport Express 2Gen for Airplay in two separate rooms

[mr.steevo]

I have an Express connected to CAT 6 and then my antiquated stereo in the living room that works great with AirPlay 2. I just bought an other Express that I want in the adjacent room to AirPlay 2 a separate system but I'm not clear how to connect it.
Ideally I would like this Express to be wireless but I don't understand what I should be doing. The rooms should work independently or together as I want.
Can someone run down if the second Express needs to be it's own network and if it also needs direct connection to the router by CAT wire?

 

[techwarrior]

Best performance would be wired, less chances for interruptions from wireless congestion.

If running CAT6 is tough, consider powerline adapters.

If wireless is the only option, consider using client mode. In client mode, Express will Join the existing WiFi like any other wireless endpoint, but not broadcast a signal for other clients to connect to it. This preserves 100% of the WiFi signal to Airplay traffic to the device.

WiFi tends to suffer from too many access points, each broadcasting and flooding the air with traffic. Reducing wireless devices reduces congestion, and reducing access points reduces traffic going to places that won't actually process the traffic.

 

[mr.steevo]

Wireless is flaky. I'm going to have to send a CAT wire over to it.

I appreciate the thoughts!

 

[techwarrior]

Wireless is flaky. I'm going to have to send a CAT wire over to it.

I appreciate the thoughts!

If you don't need a wireless access point, just turn off WiFi and use it as a wired client.