It work´s for me in a Yamaha RX-A820, this way, put a music in PC, send it thru SWYH and goes to Yamanha receiver, chose “SERVER”, move highlight do Stream What You Hear and choce MP3, it works with a litlle delay, but you have the stabilty of a PC to stream spotify instead Iphone.
Funcionou para mim em um receiver Yamaha RX-A820, coloque a musica no PC, no receiver escolha “SERVER”, mova a seta para Stream What You Hear esolha MP3, vai funcionar com um pouco de delay, mas vc ganha a establidade do PC aon contrario de reproduzir o SPOTIFY pelo Iphone.