Debut 2.0

on the audio routing question, yes it's doable but the answer depends on how you get audio out of each TV. HDMI ARC only carries one source at a time, so if you want to pull the TV's current audio (not just the apple TV / shield feed) into other rooms, the cleanest path is an HDMI audio extractor on

You will want speakers set up correctly, and you to be sitting in the main listening position (MLP). Diagram attached. Elac Debut 2.0's are kind of relaxed listening room fillers vs. say the UB5's which create a precise soundstage (but are harder to drive - 4 ohm speakers). From a Google comparison:

I’m sure it’s loud. For that price you can get something like a fosi bt20a and a set of elac debut 2.0 52 on sale that will blow those options out of the water. Can plug into computer for high fidelity or use Bluetooth. Can upgrade the amp at a later time instead of throwing the whole package away.