Suggestion for Whole home Audio


I am looking to set up whole home audio with either 4 - A50+ or 4 - UP2stream Mono amps. I would appreciate it if someone could confirm the following for me:

  1. On the 4 stream app can you set up more than one group of speakers?
  2. If set up correctly on the 4stream app, on Spotify would each device show up as an individual speaker and each group show up separately?
  3. Which of the following would be louder:
  • The UP2Stream Mono amp running Two 8 ohm speakers running in parallel dropping the load to 4 ohm; or
  • A50+running two 8 ohm speakers

I appreciate any feedback.