I sent my old Moscode 300 to George Kaye last October... and just got it back today with a list of mods as long as your arm. And I gotta say, as of the first hour or so, it sounds pretty darn good. Which is a miracle.
UPS made it a personal challenge to try to break it into a thousand pieces. The box was wet, one corner torn badly 5-6 inches, crushed in the center, another corner crushed 3-4" -- even the UPS driver was embarrasses and walked me though how to best word a claim.
But I had expected it to be handled by lower primates, so it was double boxed with a 2" layer of styrofoam between boxes. The inner box had a plywood bottom, and inch of styrofoam surrounding everything. The inner amp was wrapped in 3" of bubble wrap.....
And so it's playing magnificently in my small system. I'll let it go a bit, then move it into my big system. Honestly I haven't heard it in years, but it sure seems clearer and more detailed than I remember. Bass control is also noticeably excellent.
Wasn't cheap, but so far so good.