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.
Guf, are you running your Lampy with the off ramp 5? Or direct in with USB and no off ramp?

Are you using stock tubes, or have you rolled them?
@ Kana813, LOL!, I was going to post your exact recommendation, I agree!, The Aesthetix Pandora signature is one of the very best, one of audios best kept secrets!
Any opinions on Wavelength Crimson HS USB DAC?
Maybe the non-up sampling transcendental version? Or the super up sampling denominator version?