The V200 is much better than the amp in the HUD-MX1.
I just think the Audeze is too good for the audinst and matching those does not make much sense. The V200 is not likely to help much.
"I owned the V200 for about a year, first with the LCD-2 rev 1 and then with the LCD-3 (original and RMA'd versions). I liked the V200, especially for its size and price, but IMO it's a bit too warm and congested for the Audeze models I had, especially considering that warmth and a less-than-expansive soundstage seem to be inherent weaknesses of Audezes.
I tried the V200 first with the Lavry DA-10, which was fairly neutral but lacked a bit of realism and excitement, and may have contributed to the constricted soundstage. I then tried the V200 with my current source, the PS Audio PWD MKII, which is much more resolving, natural, dynamic, and 3-dimensional than the DA10. The V200 was better with the PWD, but still seemed a bit too boomy in the bass and imaging seemed a bit dull and lacking focus. Those issues have disappeared with the Liquid Fire, which is by far the best (and most expensive) amp I've heard with the LCD-3."
That is one person's opinion. I felt the LCD-2 sounded great with the V200 amp.