The LS50 wireless speakers arrived yesterday. They generally sound excellent. I think they need a break in period. The one disappointing aspect is that as of yet, one cannot stream Tidal from an iPhone or iPad wirelessly over AirPlay; only over Bluetooth which still sounds great. You can stream local files on your phone or iPad via WIFI. I called Kef tech support and they hope to add Tidal integration with software updates once licensing arrangements are implemented. The guy at Kef thinks the Bluetooth aptx codec sounds as good as AirPlay/WIFI streaming. I'm sure some audiophiles will differ but Bluetooth streaming sounds pretty good to me with these speakers. Finally, using my laptop Tidal app via the PC connection, the MQA files sound fantastic, unfolding once and streaming either at 88.2 or 96.
It is is a shame the speakers need to be connected by cable as it detracts from the wireless functionality/appearance, unless the speakers are sitting on a credenza where the cable can be hidden.