Holo Audio Spring 3 DAC

Nope. Haven't heard it.

Contact the company to find out how they improved it. 
The main thing to correct would be timing issues. (in ms)

bcaudio1

I think you’ll find, the Holo Audio "MAY" is the new kid on the block.
Stereophile said "it’s one of the best sounding and best measuring dacs they’ve ever had.
https://www.stereophile.com/content/holoaudio-may-level-3-da-processor

Cheers George

For $5 k the May KTE is a very good dac 
that being said I compared the  Bricasti M3 as well as the Denafrips Terminstor + I thought it was  better balanced with  instrumental textures and differences in dynamic range from start to stop, digging deeper into the recording  more accurate with the Bricasti in absolute terms, and a bit warmer balance vs neutral. Plus it uses  dual  Analog-devises 1955 Multibit dacs ,
fully Differentially balanced, excellent I preamplifier section ,
and very good Roon ready streamer board option ,
and Made in U.S.A not China .and I even  had a great tour of Bricasti  in Shirley,Ma. All made in house CNC machined Aluminum cases .a bunch of trickle down technologies from the M21 , and M1 dac ,used in many mastering studios around the world .I now have the M3 in my system and 
after 350 hours it is better then  expected which is rare .

I’m happy with my Spring 1 KTE. If I upgraded it would be up to a May.

@audioman58 

And last month you said the Audio GD R8 Mk II was the great bargain DAC.  This month Briscati.  I guess September will have you touting something different.