The Hammond story can’t be fully told without discussing the rotor cabinets manufactured by Leslie. In fact, playing the B3 organ without a rotor cabinet is viewed as something of a special effect these days. Vintage B3 not only simulates the speaker cabinet itself, but also allows you to change the listening position by placing virtual microphones in different locations.
Some of the speaker cabinet models are mathematically simulated, and others use a recording of the spatial characteristics of the speaker. The latter is known as an impulse response. Detailed information on impulse responses can be found in the Space Designer section of Logic Effects Help. If you’re unfamiliar with the concepts of the Leslie rotating speaker cabinets, see The Leslie cabinet.
The Leslie rotation speed control is shown at the lower-left corner of the Vintage B3 Main and Rotor Cabinet windows. Advanced speed controls are shown in the central display when you click Rotor Cabinet in the control bar.
The advanced Leslie rotating speaker cabinet controls are useful for specialized sounds, or when you are creating realistic emulations. See Advanced Cabinet parameters, Advanced Motor parameters, and Advanced Brake parameters.
For information about microphone parameters, see Vintage B3 Microphone parameters.
This parameter is shown at the lower left in the Main and Rotor Cabinet windows.
Rotation switch: Switch the rotor speed between Slow, Brake, and Fast modes.
Slow: Slow rotor movement.
Brake: Stops the rotor.
Fast: Fast rotor movement.
Note: When using a pedal to control rotor speed, you can hold down the pedal for a second or so, then release it to activate braking. Repeat to switch to the previously active speed mode: Fast or Slow.