Hmm, can't buy these on Amazon, eh? I want to cast from a Mac (and later a PC) to my Denon receiver (sorry don't remember the model offhand, AVR-1612 methinks). What is the difference between Chromecast vs. Chromecast audio? OK, different ports/purpose. But - Seems the audio has a better DAC? - But can I use a Chromecast into an HDMI input on my receiver, to stream the audio digitally? It is more convenient to use the HDMI input due to a front panel button, and the internal DAC maybe better than the Chromecast I'd think. Thanks!