To rotate the 15' speaker, it is mounted above a rotating drum having an angled baffle that 'sprays' the sound in a 360-degree arc when the drum is rotating. They differ in size as well as in the amplifier configuration.īoth use the same speaker components, a 15' speaker of no particular provenance, and a phenolic dome compression driver fitted to a rotatable horn. There are two basic Leslie Speakers (Leslie) found in common use today: The model 122 and the model 147. Ultimately the Leslie Speaker becameĪ product of CBS (the same folks who brought you the silver-faced Fender amps). November 29, 1949, uses the Doppler effect via a rotating loudspeaker horn or baffle to impart a tremulant effect to its input signal. Leslie, named for its inventor, Donald J. The Leslie Speaker, most commonly found attached to a Hammond Organ, has come to be used as an effect as well as the ultimate expressive device for the Hammond. Interfacing to a Leslie Speaker | Uneeda Audio
