So here's a bit of a longer term impression of the DAC-19.
I received my DAC-19 (10th Anv) - very good PCM1704 R-2R implementation - less than a month ago and I was just listening to The Steve Miller Band. The CD rip I have is very good with regard to dynamic range and it's generally a well produced album. Now, while listening I felt that the initial magic was somehow not there. I switched inputs to the Oppo HA-1 (Sabre ESS9018 32 reference DAC - well implemented) and listened to the same track that was currently playing. After the switch I was immediately able to tell the difference.
The Oppo was so very much more flat, one note, and generally didn't give a sense of any of the subtleties in the track (compared directly with the DAC-19). The highs were mashed together, no differentiation between the multitude of textures you get from real instruments. I switched back to the DAC-19 and everything immediately felt right again, felt real, even though previously I felt like I was missing something. I think that generally what I was missing is the euphonic sense of 'Aaahhhhh, there's the difference' that I heard when I first received the DAC-19. Like anything that us humans use we get accustomed to the new standard and it doesn't feel as special anymore..... that is until you're reminded of how special it really is. I think the DAC-19 is pretty special, especially at its price.