Been using the Wiim Mini since it's arrival to the marketplace. I purely use it's digital out to an external DAC and the sound is fabulous. Recently I saw a video on YT where the presenter did a comparision of the Mini/Pro/Pro Plus utilizing the digital outs. It was of his opinion via testing that the Pro and Pro Plus both exceeded the sound reproduction via digital out as compared to the Mini (no difference between the Pro models). Wondering if others have had real world comparisons with these models but ONLY via digital output to external DACs. Thanks-