Hammond X66 (1967–1975)

A rare, high-end electronic organ with tone-wheel generation, four drawbar sets, and 18 changeable presets, produced as Hammond’s most expensive model.

Overview

The Hammond X66 is an electronic organ manufactured by Hammond between May 1967 and sometime between late 1973 and early 1975. It features a top-octave tone-wheel generator with 12 tone wheels and delivers sound through an internal amplifier driving seven speakers and two high-frequency horns. Designed as a console instrument, it includes two 61-note keyboards and a 25-note pedalboard. The X66 was positioned as Hammond’s flagship model, noted for its futuristic appearance and advanced feature set for the time. Output is restricted to connection with the X-77 Leslie speaker system only, via dedicated output. Four output sockets are provided for linking to an external audio mixer and power amplifier, allowing for expanded sound routing.

Specifications

Context

The Hammond X66 was the most expensive model ever produced by Hammond, reflecting its advanced design and premium positioning in the company’s lineup. A prototype was developed as early as 1964, preceding full production which began in May 1967. It was marketed as a futuristic instrument, combining traditional tonewheel sound generation with expanded control features such as an arpeggiator and multiple preset systems.

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