Al, I changed from Yggy to MSB Discrete, but I’m afraid it isn’t as simple as replacing Yggy with MSB in my case. I do prefer my current setup by quite a lot.
I had Yggy fed by Aurender N100C through a spdif reclocker. Digital cables used are Siltech Golden Ridge II BNC to Yggy and AQ Diamond Ethernet to Aurender. AC cable is AQ Hurricane.
Then I switch to Discrete and Roon Nucleus (which runs Roon Core). AQ Diamond Ethernet now goes to MSB renderer module. I will tell you that it is not cigar right away. I felt, similar to what Ken mentioned above, I could now hear more “noise” in music (not buzzing or hissing sound) despite apparent improvement in immediacy, transparency, refinement and bass performance. So, I added a Teddy Pardo LPS to the router that feeds MSB. Things got cleaned up a bit and it becomes much more enjoyable. I also just ordered Gigafoil v4 hoping it’ll take it up a notch or two more. In the future, I may also try Aqvox SE Ethernet switch and Wavelength Ethernet reclocker when it becomes available.
I’m mentioning all these because if you are like me, not only changing the DAC, but also change the way the signal is fed, I’m afraid it isn’t as simple as replacing Yggy with MSB. I feel the best way to use MSB is via its Ethernet Renderer module and you must also be in it to improve your Ethernet situation as well (if it hasn’t been done so already).