I received NanoPi NEO and NEO Air boards along with the NanoHat PCM5102a that FriendlyArm is selling: http://www.friendlyarm.com/index.php?route=product/product&product_id=169 It's a good quality audio stereo out addon board compatible with NEO and NEO Air.   I got it working with Armbian on NEO Air!   I adapted commits from FA's repo to match Armbian's tree and get that DAC working, (original commits here: https://github.com/friendlyarm/h3_lichee/search?utf8=%E2%9C%93&q=pcm5102a+&a