Options for multi-room audio?

[haggis999]

There is a huge range of DACs available at all price levels from more conventional sources, so I doubt if I would be tempted to go for a Wolfson card - especially as I don't really want to get any more involved with Linux than absolutely necessary!

Unless my post on the Linn forum throws up some nasties on the SQ front, I will probably go ahead get a Raspberry Pi 2 Model B. This would let me experiment with both upmpdcli and MediaPlayer, which I could test by connecting the RPi to my Oppo using an HDMI connection.