I had been running my Aurender N100A through the DAC of my Hegel 360, but I found the sound slightly harsh and lacking bass. My audio dealer, Alma Audio in San Diego, suggested I try the Aqua Voce S2 DAC, and allowed me a home trial. Wow- what a difference- all harshness disappeared and the bas was round, full, and balanced. The Aqua is in the $3,000 price range, and what a bargain for what it does (doesn't do MQA if that's important to you). Needless to say, I purchase the unit. Since then I had the unit upgraded to S3 level (it had to go back to Italy for this and cost $1,000). Not sure there was a big difference from the original S2 to my ears. Nonetheless, this DAC is wonderful.