Wizard of Ozz":2t2z7kyn said:
I prefer the Chinese variant. Not a fan of the Mesa. Too muddy for me.
+1
Anyway here's the list of V30s I know of:
-Marshall branded V30 (bright!)
-Chinese-made "off-the-shelf" V30s that you can buy in most stores selling speakers (not as bright as the Marshall-branded ones)
-Marshall "Mode Four" V30 version (similar to the Chinese-made one above, but with somewhat deeper lows and a bit smoother sounding)
-"Mesa" V30 made in UK (darkest/smoothest of the above, lows not as deep as the "Mode Four" version)
As for "the Hellatone version" (Avatar Speakers), they're the same thing as the "off-the-shelf" Chinese version but "broken in". (Avatar also had stock of some of the "Mode Four" version which they used for a "Hellatone version" of that, but I see they no longer have any.)
8-ohm versions tend to sound a bit less peaky in the frequency response than the 16-ohm versions, a bit more "even sounding" (not quite as deep or bright). That's due to how they're made differently for the different impedances; they just end up with slightly different properties.
As for "Orange brand version" of V30: I'd seen some UK V30s (like Mesa uses) in a couple Orange cabs but then recently someone told me he looked inside a newer Orange cab and saw the Chinese ones in there. So I don't know what's up with that, if they used one type then switched...or maybe I'm remembering incorrectly. In any case if they used the same general UK type as Mesa but the 16-ohm version (whereas Mesa uses the 8-ohm version in their 4x12s), that could explain differences people notice in the "Orange brand version".