Hi Mikirob -- I am using the KT120's in both a PL Dialogue 4 and a Dialogue 7. To my ears, in my system, they are fantastic. They are better than the stock tubes in every way. They're resolving, dynamic, and just a little sweet. To warm things up, I am also using Mullard CV4003's in both amps. The combination is terrific.
I say go for it.
Bryon
I say go for it.
Bryon