I have a quick question on the Sonos Sub (Gen3), paired with the Sonos Arc.
When the Arc goes from idle (green light) to active (white light), the Sub makes a one-off gentle thump noise. This happens on most occasions when the system goes from idle to active. I have (factory) reset the Sub and it continues to do this.
Sonos told me (having done a systems diagnostic) that this is part of the system in order to alert users to the system moving from idle to active. It wasn't there when I first bought the Sub (2.5 years ago) and has appeared in the last year (perhaps after a software update).
There doesn't appear to be any obvious detrimental impact on the performance.
Has anybody had experience of such a thump? It doesn’t happen when the music is playing.
Thanks
Warren