1984 Marshall JCM 800 Lead Series Model 4010 50-Watt 1x12 Combo1984 Marshall JCM 800 Lead Series Model 4010 50 Watt 1x12 Combo With Legendary Tones Hot Mod V2 EVO Plug In High Gain Tube Modification Module Good condition, minor wear Introducing the LegendaryTones HOT MOD V2 EVO, a plug in dual 12AX7 pure tube module specifically engineered to dramatically increase gain in Marshall amps. The HOT MOD V2 EVO requires NO chassis cutting, drilled holes, or wiring modifications to your amp it simply and easily installs