Is the moscode 300 the Best $600 used amp?

+++I have a B&K ST202 amp. Is the moscode an upgrade to my amp??+++

IMO, yes. A Moscode 600 replaced a B&K ST140 years ago. It was a step up, with some of the typical differences between tube and ss coming into play; eventhough the Moscode is essentially a ss amp (with a tube driver), and the BK was considered to be "tuby" sounding. The Moscode sound will actually be more "neutral" tonaly, but not as far as texture. The moscode will have larger, more rounded images, with more dimensionality. I found the B&K sound to be drier, but with a darker hue. This, of course, in my system. I hope those descriptions help in some way. Is it the best amp for $600 with the qualities you describe. IMO, no. A Conrad Johnson MV50 comes to mind. Or, if you can stretch the budget a little more (I hate when posters say that), for me, this is the one: http://www.audiogon.com/cgi-bin/cls.pl?ampstube&1297226361&/Dynaco-Mk-Iii-(Two)-Fabulous-new-build

Good luck.

Rrog, I'll tell you how. Because the OP's question was about sound not specs. And while an amp's sound is affected by the load, every amp, if operated within it's comfort zone, has an intrinsic character. Now, what can you tell us about these amps' sound? Am I the only one who has owned "wimpy" 25W amps that sound infinitely better than certain 300W monsters?

Rrgo, while I really have no interest in a pissing contest, it must be pointed out (since you apparently don't know the sound of these amps), that both BK amps, as well as both Moscodes, share a very strong family resemblance; so my comments are very applicable. I will endeavor to, in the future, be more clear for the sake of those less informed.My bad. BTW, I and many others feel that the 300 is the better sounding of the two Moscodes.

Rrog, why don't you share your thoughts on the sound of these amps, so that a meaningful contribution to this thread be made.