Tungsram 12AX7/ECC83- When I think of this tube, I think of turning up the color much in the same way the classic Mullards do... smooth, maintains top end, excellent bass. The midrange especially is fabulous. We had just run out of this tube not to long ago, and it was looking grim for all our customers who are big fans of them... but happy days are here again! I just found a nice whack of them, all grades available! Price is for a single tube.
Platinum grade - The best of the best. Lowest noise and microphony with the tightest triode balance we have available. This is typically 10% or tighter, but may be higher depending on available stock.
Gold grade - Low noise and microphonics with a triode balance typically between 15% and 20%, but may be higher depending on available stock.
Driver/Buffer grade - Lowest noise but not the lowest in microphony. Triode balance will be similar to Gold grade.
This grade is only suitable for use in the driver stage of an amplifier, or the output/buffer stage of a DAC or CD Player.
If you have a preamp or phonostage, you need at least Gold grade.
Price includes matching in any quantity you need at no extra charge.