Marshall JVM-1C 50th Anniversary 1-Watt Guitar Combo Amplifier All valve Power (ECC83 (12AX7) Preamp Valves, ECC82 (12AU7) Power Valve Authentically Recreated JVM Tone 2 Channel Design Low Power Switch on Rear Panel (1-Watt down to 0.1-Watt) Resonance Switch on Front Panel