Nice first impressions djvkool. Yeah, we hear it about the same way. This is a weird sounding IEM to my ears. I can't say I'm in love with it, but I don't hate it either. inline79 heard mine in person in Chicago the other day, and described it as an interesting weird sounding earphone too.
Warning to TDK earphone lovers of the BA200, like Techno Kid, this earphone won't remind you of anything of that warmish beautiful smooth sound you hear in the BA200. The MA600 is actually more on the cool side and pushing toward analytical (although it doesn't quite get there). But if you like power sound (especially in bass, drums, and electric guitars) this might not be a bad one to own for the price. But yes, the cord is very microphonic. I still think with the silver cable the MA600 needs even more burn in before reaching its full potential.
I absolutely love the mid/bass/soundstage combo of MA600, such a beautiful, effortless combination for an IEM in this price range, however, I think the treble kills it, yes it is laid back (too far?) and unaggressive, and some people love that, but bells, cymbals sounds weird, it sounds as though anything above 8-10khz or so are all wrapped with a paper bag - if you get my drift
That aside I still like this much more than the Maxell DBA700 for sure, and I think if the treble somehow reveals itself with burn in, then I think potentially we might be looking at the new king of sub $70 single-armature type IEM