I can relate to Albert's post regarding the low end capabilities of the Sovteks. I recently upgraded from a Modulus 3 to a 3a and have been listening with the Sovtek 6922's before dropping in my Siemens 6DJ8's. While they are not as smooth or cleanly detailed as the Siemens, the bass is just outstanding -- things are not broken in yet so sound may improve a bit more. Have things changed with Sovtek over the past few years? As I recall, the Sovteks that were in my Mod3 in 1993 didn't do anything right.
So far as 12AX7's are concerned, I just picked up some of the Mazda chrome plates from 1963 vintage for the imputs on my amp. This is a very nice tube all the way around. A good balance of smoothness, detail and extension. You may want to consider these as a more lively alternative to Teles and Mullards which might strike the balance you seek. Good luck.
So far as 12AX7's are concerned, I just picked up some of the Mazda chrome plates from 1963 vintage for the imputs on my amp. This is a very nice tube all the way around. A good balance of smoothness, detail and extension. You may want to consider these as a more lively alternative to Teles and Mullards which might strike the balance you seek. Good luck.