When I listen to the two videos, yes the vocals and piano are much clearer in my room, however there is a slight etch to them which is expected when not running a preamp, and a modest priced DAC.
This motivated me to fix it.
To fix it, I got a ZROCK2 out and hooked it up. Problem solved. Then I thought, why not record the same song one more time, but with a ZROCK2!
Then I decided to make the video with the ZROCK2 ON and OFF a couple times so you could hear the change on the fly.
This of course turned into a ZROCK2 demonstration video.
https://decware.wistia.com/medias/vtgiah2qcvWhat makes this a great ZROCK2 demonstration is that there is no bass in the song to speak of. It is a female vocal track which was a perfect opportunity to show the magical effect a ZROCK2 has on midrange!
-Steve