I have multiple devices from Sonos installation and sound are ok. What bothers me is the high consumption in standby 27,5W, according to my Sonos measurements yield across all devices measured about the same. If the devices run throughout the year in standby shows a fuel consumption 241kWh representing about costs of 60 per year. I have not previously read the reviews of my predecessor. 1Bridge 1SonosPlay1 2xSonosPlay5 1SonosPlay5