9

• 910: The 910, or Memphis mode, stops the bass drum rotation at slow speed, while
the speed of the horn compartment can be switched. This may be desirable, if you’re
after a solid bass sound but still want treble movement.
• Sync: The acceleration and deceleration of the horn and bass drums are roughly the
same. This sounds as if the two are locked, but the effect is clearly audible only during
acceleration or deceleration.
• Rotor Fast Rate slider: Adjust to set the maximum possible rotor speed (Tremolo). The
Tremolo rotation speed is displayed in Hertz.
• Acc/Dec Scale slider: The Leslie motors need to physically accelerate and decelerate the
speaker horns in the cabinets, and their power to do so is limited. Use the Acc/Dec
Scale parameter to determine the time it takes to get the rotors up to a determined
speed, and the length of time it takes for them to slow down.
• Set the slider to the far left to switch to the preset speed immediately.
• As you drag the slider to the right, it takes more time to hear the speed changes.
• At the default position (1) the behavior is Leslie-like.
Rotor Cabinet Microphone Parameters
The Rotor Cabinet offers the following microphone parameters:
• Mic Distance slider: Determines the distance of the virtual microphones (the listening
position) from the emulated speaker cabinet. Use higher values to make the sound
darker and less defined. This is typical of microphones when positioned further from
the sound source.
• Mic Angle slider: Use to define the stereo image, by changing the angle of the simulated
microphones.
• An angle of 0° results in a mono sound.
• An angle of 180° causes phase cancellations.
Scanner Vibrato Effect
Scanner Vibrato simulates the scanner vibrato section of a Hammond organ. The Scanner
Vibrato is based on an analog delay line, consisting of several lowpass filters. The delay
line is scanned by a multipole capacitor, which has a rotating pickup. It is a unique effect
that cannot be simulated with simple LFOs.
152 Chapter 9 Modulation Effects