Marshall. The name is synonymous with rock, from the sounds of Eric Clapton's turn in the Bluesbreakers to the birth of hard rock with bands like Deep Purple and Led Zeppelin. Jim Marshall's last name in its white script logo on the iconic 4x12 cabinets has graced the backlines of tens of thousands of concerts across the globe, playing to a handful of people in small pubs to hundreds of thousands at the biggest stages in the world. From vacuum tubes and quarter-inch cables to microprocessors and Bluetooth, Marshall's commitment to sound hasn't faltered since Jim, Ken Bran, and Dudley Craven began selling their first guitar amps in London in 1962.