Nice equipment. Just curious I used to have a JMP 100 watt lead head that was identical to the Marshal you have pictured there eccept mine only had 2 inputs not the 4. I have never seen a JMP head like mine. either they have 2 inputs and the light up plastic power switches or they have 4 input and the metal toggles swtiches with the little square light. Never 2 inputs and the toggles with square light. Do you know why this is or have any info about it. I have looked even at Marshall history websites and nothing. thanx.