Replacement Valve kit for Marshall JCM900 4502 (2 x ECC83 1 x Balanced ECC83 ...
The JCM900 4502 is the dual speaker combo version of the JCM900 4500 head. The single speaker combo version is the JCM900 4501. You can also order these amplifier valves singly, the power valves as matched pairs or a complete kit.