Voc Rock re-valve kit comprising JJ ELECTRONIC Valves carefully selected, tested and matched to suit MARSHALL JCM900 SERIES 2500 2501 2502 amplifiers. A matched PAIR of EL34 power tubes and THREE ECC83 or 12AX7 pre amp tubes (5 valves total). Fantastic sounding valves offering optimum tone and reliability. Tone is warm and round.
