I like this up-to-date i2s spdif sound card (hat) for my Rpi3. I connected Rpi3 +Digione to multi bit DAC19 by coax cable and then to my tube headphone amplifier. I also connected CXC Cambridge Audio cd transport to DAC19 by optical cable. Made some comparisons in sounding between two systems using one composition (flac from Rpi3 and compact CD ). Finally I couldn't hear any noticeable differences in sounding! Rpi3 with DigiOne and LPS sounded as good CD transport. I was impressed with clarity of sounding as well as microdynamics provided by the DigiOne Spdif card. It is really good device.