airport express multi amp/speaker/system

I want to just extend my wireless system. I DO NOT WANT TO USE THE AIRPLAY OPTION.

So can I use say Pandora, Tunein etc. and select my wireless instead of Airplay and send the same thing to both my express units? (2) That way I can play to my stereo/ amp /speaker/ volume controlled in two places at the same time. I am not sure my question is clear since I seem to be getting different replays.

I currently have the 1st gen. express and play into my amp vis a cable. I see that amp port is still on the new gen. so I was in hope this can be done.

AirPort Express

AirPort Express

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