Vox Valvetronix VT20+

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4. ORG PHASE
This models a popular analog phaser in a banana-colored box.
Knob/Switch Parameter
DEPTH RESONANCE Adjusts the amount of resonance.
TAP SPEED Adjusts the modulation speed in a range of 0.1...15
Hz.
TAP+DEPTH SPEED Adjusts the speed.
5. TWIN TREM
This models the acclaimed tremolo circuit built into a US-made combo amp.
Knob/Switch Parameter
DEPTH DEPTH Adjusts the tremolo depth.
TAP SPEED Adjusts the modulation speed in a range of 1.0...15
Hz.
TAP+DEPTH SPEED Adjusts the speed.
6. G4 ROTARY
This models a rotary speaker.
Knob/Switch Parameter
DEPTH DEPTH Adjusts the modulation depth.
TAP SPEED Adjusts the modulation speed in a range of 0.8...15
Hz.
TAP+DEPTH SPEED Adjusts the speed.
7. PITCH SHIFT
This is a pitch shifter that allows you to play chords, and has a variable range
of one octave upward or downward.
Knob/Switch Parameter
DEPTH BALANCE Adjusts the balance between direct sound and effect
sound.
TAP PITCH Specifies the amount by which the pitch of the effect
sound will be shifted; an octave, a 4th, or a 5th. Each
time you press the switch, the setting will cycle
between -12, -7, -5, DT (Detune), +5, +7, +12, -12.
TAP+DEPTH PITCH Specifies the amount by which the pitch of the effect
sound will be shifted in semitone units (100 cents).
The setting will change as follows: -12, -11, ... -1, 0,
DT (Detune), +1, ... +12