Absolute top tier DAC for standard res Redbook CD


Hi All.

Putting together a reference level system.
My Source is predominantly standard 16/44 played from a MacMini using iTunes and Amarra. Some of my music is purchased from iTunes and the rest is ripped from standard CD's.
For my tastes in music, my high def catalogues are still limited; so Redbook 16/44 will be my primary source for quite some time.

I'm not spending DCS or MSB money. But $15-20k retail is not out of the question.

Upsampling vs non-upsampling?
USB input vs SPDIF?

All opinions welcome.

And I know I need to hear them, but getting these ultra $$$ DAC's into your house for an audition ain't easy.

Looking for musical, emotional, engaging, accurate , with great dimension. Not looking for analytical and sterile.
mattnshilp
........and after you have gone thought all of that, just put on a few of your favorite recordings.  Are you tapping toes or moving in your seat?  Do you forget to listen as a serious reviewer or are you just relaxed and listening for fun?  There really is something about not listening critically while listening critically.  
Agree with all. Have a panel of audiophile and seasoned industry ears joining me tomorrow. I expect a multitude of differing opinions. Lol. 

Will report. 
Ctsooner,
Excellent observation and advice. Relaxed body drawn into the music and emotionally connecting. The components that spontaneously and naturally allow this are the superior choice. Toe tapping and head bobbing with the musical flow speak volumes metaphorically.
Charles
At this level, both make toes tap and give that “lost in the music” experience. There’s no bad choice here. Just better choice for me. 

I listened again this evening, briefly. As much as I think the Boulder is more accurate and refined, I think the Davinci 2 is a tad more engaging. I look forward to spending a few hours tomorrow and hearing a few opinions. 

Stay tuned. 
If that current impression holds up,  for me it would be Davinci 2 stays  and I'd wave bye to the Boulder.😊
Charles