What I'm really looking for is the 2016/17 equivalent of the Squeezebox or Transporter. Some receivers have this or similar capabilities built-in, but I'm looking for a standalone device that connects my entertainment system to my home network the same way a Squeezebox does. Bluetooth sucks for audio transmission, so it should be wi-fi and securely connect to my home network. 5GHz would be preferable, but 2.4GHz is acceptable. Wired would be good as well, since my router sits on the same rack as the AVR.