I also think it's strange the Chinese haven't come up with a KT120 type, since the design is a gigantic (really...amazing) home run in tubeland, and has been around for a few years. I also would have expected some "gold pin extra cool with fancy writing on it" version to satisfy the hoards of people who need more expensive things. I did "drop in" a set of 120s in an otherwise 6550/KT88 Jolida (after being told by Jolida it wouldn't destroy the amp). They sound great and I've found nothing to make 'em drop out.
