KT120 for Primaluna or Mystere?

Would anyone know why Primaluna and Mystere do not recommend KT120 tubes as Kt88 replacements? Is it because of their auto bias feature?

50jess01-14-2012 8:31am

saki70 Details Discussions Posts This discussion Message User 907 posts 08-18-2017 at 07:24pm Copy Comment URL Report Comment Edit Delete In a Primaluna Dialogue Premium Integrated of recent vintage , the KT120's functioned flawlessly . The sound from this tube however was not to my liking . It did the extremes quite well but the mids were MIA . Hope this helps .
mechans Details Discussions Posts This discussion Message User 3,048 posts 08-16-2017 at 12:10am Copy Comment URL Report Comment Edit Delete did you ever get an answer? I noted the input/driver tubes are different and that the transformers may be different as well, but not too sure on that one. The lesser offering drives EL34s the bigger amp can use a variety of power tubes which you see in Prima Luna as well.
facten Details Discussions Posts This discussion Message User 2,723 posts 01-15-2012 at 02:03pm Copy Comment URL Report Comment Edit Delete yes Kevin Deal at Upscale Audio
learsfool Details Discussions Posts This discussion Message User 1,215 posts 01-15-2012 at 05:22am Copy Comment URL Report Comment Edit Delete I would assume it has something to do with the circuitry rather than the auto-bias feature. I would contact the PrimaLuna rep for the US, I believe his name is Kevin Deal. Don't have the contact info in front of me, and I have never needed to contact them before, but I hear he is great to work with, and very good at answering such questions.