Marshall Amps 2012 Calendar. UK company Marshall Amps is an iconic company founded by drummer Jim Marshall. Its primarily designs and manufactures music amplifiers. This official Marshall Amps 2012 Calendar showcases this popular amplifier manufacturers most iconic designs for which they are among the most recognized brand in popular music. Each month of this calendar features these Iconic amplifiers which have become synonymous with guitarists and musicians alike and appear alongside each monthly calendar grid with ample room to add your own notes, dates, birthday and appointments. A great gift or stocking filler for those who are heavily into their music and love the sounds produced by the iconic Marshall brand.