I just re-tubed my single recto with JJ ECC 83S in position V1 & V2.
Wow.. the sound is amazing and also tighten up the bottom.
Do you think I should re-tubed Pos V5 as well with the JJ ECC 83S to balance up? Or leave it with the original mesa 12AX7 Chinese 1?
Thanks guys ....
:D