Ekki, thank you.
Again ... excellent post.
At this moment I have the following set
4X KT88 Mullard (new)
2X RCA 5751 (12AX7) Black Plates (best I've ever heard)
2X RCA 12AU7 RCA Black Plates 1959
2X RCA 12BH7 Black Plates D Getter
And next week on the tests - KT88 Sophia Electric
Sophia Electric's Home Page
But my biggest problem is .... ATM300 with the Takatsuki TA-300B
I love this amp, his midrange, bass, and especially voice presentation.
This is exactly what I call "the music"
So, Iam afraid that finally I will end up with both of them.
Paweł
PS
Thanks vinod_david