The Marshall Major (Model 1967 [1] ) was a bass guitar amplifier made by Marshall. It was introduced in 1967 as the "Marshall 200" (in reference to the power of the amplifier). It had a plexiglass panel and two inputs in one channel, but in contrast with the 100 watt heads made by Marshall, the first series had split[ clarification needed ] tone controls. For the second series, in late 1968, Marshall reverted to ordinary passive tone controls, and was called the "Marshall Major". [2]
The amplifier used KT88 output valves, [3] two ECC83 preamp valves and one ECC82 valve as a phase inverter. [1] Approximately 1,200 of these amps were produced from 1967 to 1974;[ citation needed ] Marshall ceased production when the supply of KT88s ran out. [2]
The amplifier was used by rock musicians who needed very high volume. A notable user is Ritchie Blackmore; his Major had the two input channels cascaded into one, essentially creating the first Marshall with a master volume. [2]
The Major was also made as a PA amplifier, Model 1966 (from 1967 to 1971, with eight inputs in four channels; known in 1967 as the PA 200), and as a bass amplifier, Model 1978 (from 1967 to 1974). [1] A line of on-ear headphones by Marshall have also been issued with the same name.