Hello,
I have just received a second Sonos ERA 300 for Christmas and have added it to my first 300 with a sub mini. They work great together except when I used my turntable through Line In. Then just one of the speakers plays correctly and the other one at a greatly reduced volume. I’ve even swapped the speakers and the new one still plays about half volume even when it is the one with line in connected. Sonos support couldn’t help. Can you offer any guidance? Also balance isn’t an options at all in the app for this pair which seems odd. If I could adjust that I would think it would work.
Greg