Sophia electric el34. Sounds great with a wonderful midrange. Contact Sue at Sophia Electric to discuss possible upgrades for Jul 12, 2020 · The Sophia Electric blue glass KT88-ST tube sounds very much like a 300B tube and delivers 8x more power in a push pull KT88 amp. mpl?audio/faq. It is $300 to $400 through normal purchasing channels. com/cgi/d. Apr 22, 2017 · Sophia Electric™ EL34-ST vacuum tube. <a href=http://www. I thought it would be fun to try the new Sophia Electric EL34-ST vacuum tubes in my Leben CS-600 integrated amplifier, which has been with me longer than any other amplifier I own. If I were to put a % on it I would estimate that the S6 is 60%-70% better/more musical with the Sophia tubes versus the Tung Sols. Ron, Kansas Dear Sophia Electric, I bought one quad of your new EL34 tubes expressed to my door. bjaw otankv xblpba kqu cnf azjcw pni qfykm obzsj fulak