Hello, what an amazing product, I just love it!
I noticed when using the HiFimeDIY Sabre U2 DAC with beta 0.3 the volume is very low even set to 100%. So i had log in using ssh and use alsamixer to set card to SA9023 USB Audio, chip to USB Audio and then turn the PCM up.
When using the MPD configuration to change the Audio Output interface to HiFimeDIY Sabre U2 and Volume Control to enabled - software or any other setting just sends the rune audio into a never ending connecting loop. I have to unplug the power to Rpi and let it reboot to get it to connect again.
link to bug report: http://pastebin.com/ms1Bs9MV
Thank you for a great product.
Tor