Just to close off my Onkyo Spotify complaint, I have an 8 year-old Onk that has a native Spotify app. This is not the same as Spotify Connect that is found on the Air and more modern gear. Spotify made changes to their software and Onkyo, unlike Denon and others, did not update their native app. Hence why mine does not work.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated