What DAC upgrade made you say “DAMN, that sounds SO MUCH better than my last DAC”?

The very new line to the U.S  from Underwood Wally is
Audio GD , I recently bought their New totally redesigned line as of late April 2021 the R8  MK2.
it is a very beefy 25 lbs using 3  Rcore transformers operating  in pure class A on the analog stages, and servo controlled FPGA on the digital end ,full R2R dac with 5 user adjustments . At $2k it’s  class leading IMO and I have owned 
Denafrips Pontus 2 , Schiit Yggsdrasil 2, Belcanto , Lampi  Amber 3
it took 500 hours to fully settle in having dual Femto clocks , and New firmware port on back for future upgrades which is very good to know.

Without a doubt the Bricasti M3 dac with streamer board option 
is a incredible price ,performance leader . I had a Denafrips Venus 
and was going to go with a Terminator ,or a Holo springs Kte
 but Anthony at Perrotta Consultants ,on theEast coast IMO a premiere dealer with a great assortment of great gear said these other Chinese dacs are very good But Bricasti are known for their musicality in the mastering studios  but expensive.this M3 
Uses the classic  Analog Devises 1955 laser trimmed Multibit dac chips , and tons of trickle down technologies, fantastic build quality and execution and the streamer is seamless and Roon ready ,and best of 2020  it truly delivers excellent detail and realism,it sounds like a mixture of tubes and solid state and if you buy a cable or power cord ,very attractive package pricing .
https://m.youtube.com/watch?v=pG1TGrVEpOc

My uncle works in digital mastering  studios around the world and he spoke very highly of Bricasti being the best he has encountered ,not just in accuracy 
but in but as a whole in separating each instrument  and bringing out the best 
in tonal shadings and even variances in pitch to hear as a whole it was just on another level ,that was the Bricasti M1-SE that being said he said their new
M3 with streamer card is not far behind at1/2 the cost he was spot on .
I bought it with a trade in with on audition from Perrotta consultants on the east coast very fair pricing and nice package deal with cables . After having heard Denafrips terminator side by side and Audiobytes with separate power supply 
they were very good But just did not present this level of realism especially after the long burnin around400 hours, and filter put in minimum mode.at $6500 with streamer card Roon ready a true high end bargain ,and built superb all CNC ,and  fully balanced and use in dual mono mode using the classic  AD 1955 Multibit dac chips their-separate  patented 1bit DSD ,and true Analog preamplifier which is exceptional if you want to run direct to amp, or just set to  -0 to fully bypass great engineering 👍