ECC83 MG (12AX7)

The JJ ECC83S MG utilizes a medium length ribbed plate design that is much like the old Amperex and Brimar European designs. Sonically it’s nice and thick sounding with a good edge that’s not brittle. It has a bold character with a fair amount of harmonic density but remains very open sounding whether played clean or overdriven. The ECC83MG is a little more polite than the JJ ECC83S which is pretty aggressive. Tonally it fits very nicely right between the JJ ECC83S and JJ ECC803S.

All our preamp tubes are stringently tested for noise and microphonics using Amplitrex testers driving an external amp. There is no extra charge for low noise and microphonics testing like with other tube vendors. If a tube does not pass our strict performance criteria it’s tossed or sent back to JJ Electronic for evaluation.