You only need EDO if you want to play files above 24/96; it has no effect on "sound quality". The DAC in the Touch has held up surprisingly well, but there's no harm in trying a newer external DAC. I'd look at models from Topping to start. They range from $100-$850 US. The D30pro looks to be a winner, but it's not in general release yet. If possible, purchase from a store that allows returns just in case you hear no difference or want to try a different DAC.
Some reviews of the Topping models and others are here: https://www.audiosciencereview.com/forum/index.php?reviews/ ------------------------------------------------------------------------ Apesbrain's Profile: http://forums.slimdevices.com/member.php?userid=738 View this thread: http://forums.slimdevices.com/showthread.php?t=113922 _______________________________________________ Touch mailing list Touch@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/touch