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Chapter 15 Vintage B3 405
Advanced Motor parameters
The advanced cabinet parameters are divided into three groups: Cabinet, Motor, and Brake. See
also Advanced Cabinet parameters and Advanced Brake parameters.
The microphone parameters are described in Vintage B3 Microphone parameters on page 408.
Motor parameters
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Acceleration knob: Rotate to set the time it takes to get the rotors up to the speed set with
the Max Rate knob, and the length of time it takes for them to slow down. The Leslie motors
need to physically accelerate and decelerate the speaker horns in the cabinets, and their
power to do so is limited. Turn Acceleration to the far left position to switch to the preset
speed immediately. As you rotate the knob to the right, it takes more time to hear the speed
changes. At the default, centered, position the behavior is Leslie-like.
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Max Rate knob: Rotate to set the maximum possible rotor speed.
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Motor Control pop-up menu: Set dierent speeds for the bass and treble rotors in the pop-up
menu. Use the Rotation switch to choose slow, brake, or fast mode. See Vintage B3 Rotor
Cabinet window overview.
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Normal: Both rotors use the speed determined by the Rotation switch position.
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Inv (inverse): In fast mode, the bass compartment rotates at a fast speed, while the horn
compartment rotates slowly. This is reversed in slow mode. In brake mode, both rotors stop.
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910: The 910 (also known as “Memphis”), stops the bass drum rotation at slow speed, while
the speed of the horn compartment can be switched. This is useful when you’re after a solid
bass sound but still want treble movement.
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Sync: The acceleration and deceleration of the horn and bass drums are roughly the same.
This sounds as if the two drums are locked, but the eect is clearly audible only during
acceleration or deceleration.
Note: If you choose Single Cabinet from the (Cabinet) Type pop-up menu, the Motor Control
setting is not relevant because there are no separate bass and treble rotors in a single cabinet.
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Speed MIDI Control pop-up menu: Choose a MIDI controller that is used to remotely switch the
rotor speed. All items (except ModWheel) in the pop-up menu switch between fast and the
speed set with the Rotation switch positions—either switching between slow and fast, or
switching between brake and fast. If fast is chosen, the rotor speaker switches between fast
and slow.
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Modwheel: Assigns the modulation wheel to switch between all three speed settings. Brake
is selected around the modulation wheel’s center position, slow is selected in the lower third,
and fast in the upper third of the modulation wheel’s travel.
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Modwhl Toggle: Switches as soon as the modulation wheel moves away from the centered
position. If the modulation wheel passes the center position when moved from a high to
low position, no switching occurs. This caters to Roland keyboards with combined pitch
bend and modulation controls.