I am running a Musical Design Chameleon preamp made by John Hillig. The same well known and respected person that has made many people ecstatic with their systems. The Chameleon has several daughter boards that snap onto the motherboard and provides an easy way to compare differences in tubes and tube types. I find the 6sn7 board with my Tung-Sol 6sn7GTB provides a good soundstage and a rich tone that you can listen to for hours. I swap different boards and tubes. Presently I am using a board with 2 Telefunken 12au7 tubes. I really enjoy the outstanding sound and flexibility this preamp provides.
What made you change to a 6SN7 preamp?
If you made an intentional shift toward a 6SN7-based tube preamp, what sonic characteristics motivated your move?
I have been doing some comparisons and think I have some reasons I like the 6SN7 better, but there are so many factors which could be at play, that I'm not sure what is responsible.
Rather than list my details for others to analyze, I'd rather hear your answer to the basic question.
Tell me about your path toward a 6SN7 preamp?
What did you change from and why?
Even if, overall, the change was worth it, did you lose anything in the transition? What?