I have a Sonos Arc and Sub Gen 3. The Arc is connected to my Nexigo Aurora projector using HDMI eArc. The sound quality isn’t as good as when I play music from my phone via AirPlay. For example, a song sounds great on my phone even at half volume with strong bass. But when I play the same song through the projector, even at 80% volume, the sound quality is lower without life. 

Does anyone know how to fix this or suggest better alternatives?