How can we have missed this opportunity?

It is actually interesting that a DAC exists at this price point.  It is also interesting how the cost of pretty good DACs has come down with (e.g.) Wiim and Schiit for a few hundred dollars bettering multi-thousand dollar gear from the '90s.

30 years ago I heard some horrid digital stuff, from companies whose amplifiers were excellent.  No spatial sense, glaring, tiring, grainy highs and $5,000+.  Computing power, plus ready the availability of high precision, high stability OCXO components have transformed digital sound.  It is possible we are living in a Golden Age of high end equipment.  With the increase of wealth among the Chinese I suspect we shall be seeing really first rate equipment and components.  As an example, I replaced the NOS RCA black plate 6SN7s in my amp with LinLai Sapphires and found that the warmth and liquidity were still there but with a better sense of space - like combining the best of a 2A3 and 300B.  I do want to try Sophia 300Bs - designed in the US, made in China.

Apologies for wandering off topic.

I didn't realize ads were allowed to be posted here disguised as actual threads.

You have listed in your Details:

a nearly $30,000.00 Esoteric SACD player.

$3000.00 preamp

$40,000.oo Aria Speakers driven by a......

XA-25(pass labs)

$10,000.00 cartridge into an

$11,000.00 Phono stage into a $3800.00 turntable

amongst other things, a  rubidium-based clock/oscillator( https://www.thinksrs.com/products/fs725.html )

It's ten bucks, and I'm assuming the SRS (Stanford Research System) FS 725 can be used to (measure ?) the YGiTK DAC.  For someone who owns a K-01 XD se, I think you could do better for your wife's audio system.  I noticed no photo of your system, outside of the homebrew amp, just the wife's.  Considering what you spent on yours?

My wife's system is an Eversolo Play CD - she mainly plays CDs from the 90's - and a pair of Dynaudio 160s that lives in her studio for music while she works - or cleans up.

The YGiTK post was an attempt at humor, given the florid description and a $9.95 price tag,  If she were interested in a $250k system I'd buy it for her - I owe that lady for saving my sanity after being in deep depression for two years after my late wife was killed.

That dac  doesnot bring anything special a cable conversion your biggest gains 

are from the start , a good lps power supply from your router to start ,the wall wart is junk and just adds more noise, then a respectable ethernet hub at minimum 

LHY. SW6, or better and quality ethernet cables , your best one at your end point ,

that’s even before you get to the dac and its design and filtering and D to A  conversion and use quality power cords , EVERYTHING COUNTS  !,