Oh my gosh, I have seen issues with the Sonos 1, and I have two of them and truthfully it is not that loud. However, I just added a Alexa Cube through an LG TV to my Playbar. Although you can control the volume of what ever you are watching, the Alexa volume is at a 10 ALL THE TIME.
I spent an hour with Amazon, and they say it is a Sonos problem. Not sure how it is, but I am looking for help.
The loudness of the Cube makes the Sonos 1 sound like a whisper.