Re: Soundtouch multiple speakers cannot play all via app on Airplay.
In reply to your response "Play All with Airplay has never been available on the SoundTouch platform, as it is a limitation of Apple's Airplay protocol. " I can confirm that prior to the lastest SoundTouch App update 18.1.14 the Play All function did work.
I have a SoundTouch 20 Series I and a new SoundTouch 10 - I played my music from iTunes connected to the SoundTouch 20 via AirPlay and the used the SoundTouch App 'Play All' button associated to the SoundTouch 20 to play synchronised to the SoundTouch 10 - this worked fine.
As I mentioned previously if you can email us a link to the SoundTouch App 17.170 this will fix both our problems ! I know you don't publish older versions of the software but I am willing to install and test this for you. In the future I will NOT update via the app but download the software so I will keep a copy of the older version so I can revert back, BUT have been updating SoudTouch App via the application for years now and all has been fine. I note the firmware for the speakers was NOT updated with the app version 18.1.14
I agree with bballman360 that the sound quality via Bluetooth is appalling - I mean its really bad compared to WiFi