I have a Panasonic 4K TV connected with HDMI ARC to a Bose Soundtouch 300 soundbar and Bass unit.
The TV has a USB memory stick with M4A/MP3 files shared via a NAS feature on the TV. Everything is good and I can play music via the HDMI or the feature on Bose soundtouch to play files via NAS.
My question is why does it sound better with Bose playing the music file... I mean much better than via the TV. Even Bluetooth sounds better with the iPad playing YouTube music, instead of the same video played by the TV app.
I also think that movies from Sky don't sound as good either.