Couple things to remember, tubes can be very subjective to sound quality, what sounds great in one place can sound mediocre or crappy in another.
Equipment type and surrounding circuitry play a role even though tube types have inherent characters.
Manufacturing facilitys and lot runs (current and extinct) add to the variables.
So, when you find the magic bottle combo, better grab some extras, cause replacing expensive, rare, N.O.$.ers can be saddening when they're history !
Equipment type and surrounding circuitry play a role even though tube types have inherent characters.
Manufacturing facilitys and lot runs (current and extinct) add to the variables.
So, when you find the magic bottle combo, better grab some extras, cause replacing expensive, rare, N.O.$.ers can be saddening when they're history !