Marshall JCM900 4100 100W 2-Channel Tube HeadMarshall JCM900 4100 100 Watt 2 Channel Tube Head Powerhouse will make you stand out on stage. A stylish reissue, the JCM 900 4100 is the evolution of the JCM800 adding another channel, two reverb options and two gain features. An amp built to go on the road and be on the stage with a sound loud enough to fill stadiums. Crank It Up High and low power options mean you can change between 50 and 100 watt of power. Gain A Little Each of the two channels