Phantom Gold MQA

[dasun]

Very interesting thread!

I still have three very basic questions:
1) what does MQA mean?
2) so if I use a Bluesound connected via Toslink with a Phantom, the sound quality playing Tidal will be better than using Spark connected wirelessly with the speakers?
3) what is the best way to connect a vinyl player? Currently, I have connected it to a Sonos Connect, and the Sonos device is connected via Toslink with one of the Phantoms. Would a different device (like a Bluesound) make a difference?

Thanks