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Table Of Contents
110 Chapter 9 Modulation
Rotor Cabinet
The Rotor Cabinet effect emulates the rotating loudspeaker cabinet of a Hammond
organs Leslie effect. It simulates both the rotating speaker cabinet, with and without
deflectors, and the microphones which pick up the sound.
 Rotor speed buttons: These switch the rotor speed. Chorale switches to slow
movement, Tremolo to fast movement, and Brake stops the rotor.
 Cabinet Type menu: Choose between various cabinet sizes, shapes, and material.
 Horn Deflector slider: Switches the deflector of the rotor cabinet’s double horn on or
off. Switching the deflector off increases amplitude modulation, and decreases
frequency modulation.
 Motor Control menu: Allows you to choose between various modes that define the
speed of the bass and treble controls separately.
 Rotor Fast Rate slider: Use this to set the maximum possible rotor speed for the
Tremolo mode. While moving the slider, the Tremolo (rotation) speed is displayed in
Hertz.
 Acc/Dec Scale slider: Determines the speed at which the Leslie motor accelerates the
rotors (time it takes to get the rotors up to a determined speed), and the length of
time it takes for them to slow down.
 Mic Angle slider: Changes the angle of the simulated microphones. An angle of 0°
results in a mono sound, while an angle of 180° causes phase cancellations.
 Mic Distance slider: Sets the distance of the simulated microphones from the sound
source. Higher values result in a darker, and less defined sound.
Choosing the Cabinet Type
You can choose between the following cabinet types in the Cabinet Type menu:
 Off: Choose to switch off the rotor. There’s an alternative to switching the rotor effect
off: in the Brake mode, the speakers don’t rotate, but are still picked up by the
simulated microphones, in a random position (see “Rotor Speed” paragraph below).
 Wood: Mimics a Leslie with a wooden enclosure, and sounds like the Leslie 122 or
147 models.
 Proline: Mimics a Leslie with a more open enclosure, similar to a Leslie 760 model.
 Single: Simulates the sound of a Leslie with a single, full-range, rotor. The sound
resembles the Leslie 825 model.
 Split: The bass rotor’s signal is routed more to the left side, and the treble rotor’s
signal is routed more to the right side.