10.6

Table Of Contents
643Logic Pro Instruments
Use an expression pedal to control the Wah effect
1. In Logic Pro, click Options in the control bar, then set the Expression knob to a value of
0.
2. Click Effects in the control bar, then choose controller 11 from the Sweep MIDI Control
pop-up menu.
This enables control of Wah cutoff frequency with the expression pedal and requires no
further setup of your master keyboard. If step 1 is overlooked, the expression pedal is
used to control both Vintage B3 main volume and the Wah effect.
Note: Consult the user manual for your keyboard to learn more about use of an
expression pedal.
3. Adjust the Range knob to set the sensitivity of the Wah to incoming expression pedal
controller data.
Learn a MIDI controller to control the Wah effect
1. In Logic Pro, click Effects in the control bar.
2. Choose Learn from the Sweep MIDI Ctrl pop-up menu.
When Learn is active, the parameter is assigned to the first appropriate incoming MIDI
data message.
3. Move the MIDI controller on your MIDI device.
Learn mode has a 20-second time-out facility:if Vintage B3 does not receive a MIDI
message within 20 seconds, the parameter reverts to its original MIDI controller
assignment.
Logic Pro Vintage B3 Distortion effect controls
The Distortion effect simulates an overdriven two-stage tube amplifier. Its primary role is to
simulate the Leslie amplifier or another amplifier used to feed the Leslie speaker cabinet.
Vintage B3 Distortion parameters
Distortion On/Off switch: Turn on or bypass the Distortion effect.
Type pop-up menu: Choose a tube amplifier model.
Growl: Simulates a two-stage tube amplifier. It closely resembles the Leslie 122
model, the classic partner for the Hammond B3 organ.
Bity: Reminiscent of a bluesy guitar amp.
Nasty: Delivers hard distortions and is suitable for very aggressive sounds.
6550 AB V3: Tube distortion sound modeled on class AB amp head.
6550 AB V2: Tube distortion sound modeled on class AB amp head.
6550 GL: Tube distortion sound modeled on tube amp head.
Tone knob and field: Change the distorted portion of the sound. This has no effect on
the dry signal portion. Limiting changes to the distorted signal allows for very warm
overdriven sounds that do not become scratchy if you try to get more treble out of
Vintage B3.