Marshall Model 2050 – Professional Modular Mixer Unit

The Marshall Model 2050 is one of the most obscure and intriguing pieces of equipment ever mentioned in a Marshall catalog. Briefly referenced in the Professional P.A. section of the 1972 catalog, the 2050 was identified as a semi-conductor mixer unit designed to integrate with Marshall’s new line of slave amps and horn-loaded cabinets. While little documentation exists beyond this mention, it’s clear that the 2050 was conceived as a modular, expandable live sound mixer—likely a variant or upgrade of the 2030.

Intended Use and System Integration

The 2050 was designed as the central brain of the Marshall Professional P.A. system, and was meant to be paired with:

Model 2051 – fully transistorized 250-watt slave amplifier

Multiple 2055 speaker cabinets – horn-loaded units for full-range P.A. coverage

Likely compatible with other Marshall slave amps (2031) and cabinets (2029, 2027)

This configuration allowed touring bands and venues to assemble a modular P.A. system with near studio-level flexibility, output power, and channel count.

Construction and Design (Inferred)

While no confirmed photos exist, it likely featured:

Wooden housing covered in black vinyl or textured paint

Gold or brushed-aluminum control panel

Rear-panel breakout for output feeds, slave amp connections, and monitor circuits

Standard Marshall aesthetic trim and handles

The modular board layout would have allowed field-serviceable channel strips—a major innovation for 1972, and a feature now considered standard in professional mixing consoles.

Rarity and Collectibility

very very rare

It may have existed only as a prototype or limited dealer/distributor install item

Units, if produced, were likely custom-built per order

This makes the 2050 one of the most elusive pieces of Marshall gear ever conceived, a theoretical peak in their short-lived venture into modular P.A. mixing.