Roy Gregory has posted a review of the VTL MB-450 Series III Signature monoblock amplifiers ($18,000/pair) at AVGuide. His conclusions:
“In an ideal world I’d want more detail, I’d want more micro-dynamic definition and greater clarity of the spaces around and between the instruments and players. But this isn’t an ideal world and the question is, just what would you be prepared to sacrifice in order to achieve those gains? In the case of the VTL 450s that’s a hard one to answer and after considerable thought I’d take them just the way they are. Here is the pot of gold at the end of this particular rainbow – the high-powered valve amp that you can live with AND love. So much music, so few flaws and none of them intrusive, this is an amp that’s finally come of age: More than that, it’s one for the ages.”
You can read the full review here.