Now I understand your question. I would suggest upgrading to the Sasha and see if you are satisfied with the sound. While I have not heard he v5xe with my Sasha I did with the W/P 8 and w/p 7. To my ears the V5xe just did not have enough low end for my tastes and for the jazz and rock music hat I listen too.
I did drive MX-r with the k5xe MP for a while with satisfactory results. I ultimately upgraded to the Nagra PL-L which IMO sounded very close to the KXR for less $ and in some ways better.
I did drive MX-r with the k5xe MP for a while with satisfactory results. I ultimately upgraded to the Nagra PL-L which IMO sounded very close to the KXR for less $ and in some ways better.