I own a pair of CJ premier8s, used them for a year with Sovtek (16 of them!) tubes with no problems except wear. I changed to Svetlana C about 6 months ago and sonic improvements were not subtle.
Now, I have a friend with a Jadis amp (Defy7 in this case) and he got the best sound from it testing and measuting all tubes and install them in sets of 4 at the clostest measuring rate, since the Jadis amp works (I understand) in quads (serial) and does not have the autobias feature of my CJ.
Hope this helps.
Fernando
Now, I have a friend with a Jadis amp (Defy7 in this case) and he got the best sound from it testing and measuting all tubes and install them in sets of 4 at the clostest measuring rate, since the Jadis amp works (I understand) in quads (serial) and does not have the autobias feature of my CJ.
Hope this helps.
Fernando