Just a quick note to advise that my order of the W4S of the modified Sonos Port arrived last night. Got it installed in my system and took it for a test run. Set up was quick and easy as are all of the Sonos products. Only got an hour or so of run time but my original impression is ‘WOW’......! So happy, happy happy that I returned to W4S for their upgrade mod of the Sonos Port.