Yamaha VL Owner's Manual page 45

VL Version 2
Output Level
¯
Sets the output level of the distortion sound. Higher values produce higher level.
Mode
¯
Determines the type of filter used by the wah effect: LPF = Low Pass Filter; BPF =
Band Pass Filter; HPF = High Pass Filter.
Wah Pre/Post
¯
Determines whether the wah effect is placed before the distortion effect ("Pre") or
after the distortion effect ("Post").
Cutoff Freq
¯
Sets the central cutoff frequency for the wah effect.
Resonance
¯
Sets the amount of emphasis at the wah effect cutoff frequency, and therefore the
depth of the wah effect. Higher values produce greater emphasis at the cutoff frequency.
Sens
¯
Determines the amount of cutoff frequency variation or sweep. Higher values
produce a broader frequency variation. A setting of "0" results in no cutoff frequency
variation.
41