Wadia S7i vs Esoteric K-01/K-03 vs MSB


As I want to upgrade from Sony XA5400ES has someone compared the following:

-Wadia S7i
-Esoteric K-01 or K-03
-MSB with Platinum Dac IV plus, Signature Platinum Power Base, Upsampler 384 kHz and Platinum dac IV transport or any other MSB device.

I got already a great deal on a used Wadia S7i, which however is discontinued now.
I have no possibilities to compare any of these and apparently there is no specific information available on the net.

Thanks for making any efforts.

sequence56
@ Sequence56, Have you considered Luxman?, I have heard great things about their sound, compaired to what is under discussion here!, I have seen some audiogoners pick the luxman over the best available here!, what is everyones opinion here on the Luxman versus whats mentioned on this thread?, cheers!
Fellas,I also feel we should add Accuphase to the mix here as well!, then let the fun begin on our opinions!cheers!
@ Audiolabyrinth
Thanks.
I heard Accuphase a few times and was not overly impressed, did not remember which models however.
Not much known about Luxman, is indeed quite recommended by some.
I choose to go the separate dac-transport route, for which MSB is a very strong contender with versatile options to upgrade.
Also, consider Esoteric P02/D02 that does 352k/384k 8x upsampling (like DXD), DSD and a new algorithm 35 bit D/A conversion for regular CDs.
I did not compare it with MSB. It is better than Accuphase top of the line DP900/DC901.