I am still reading user manual of the receivers. I realized that some of them do not have digital to analog converter. What I mean for an instance AVR 635 has mp3 decoding feature, but 5890 does not. On the other hand, Pioneer 1015 has WMA9 decoding feature. My plan is to connect a media player such as Roku or I/O Data Link Player to a receiver and enjoy listening MP3 or WMA in surruond format. If a receiver does not have this kind of decoding capability, does it mean that I can not listen MP3 or WMA music in surround format.
