These are two-channel stereo phase shifters. Using delay and phase changes, they produce a
modulation effect that is clearer than chorus or ﬂanger. These effects are especially suitable for
electric piano and guitar. Chorus and ﬂanger produce their effects by modulating the delay time.
However, phasers, modulate the phase of the input signal, creating an effect that has a different
character to that of chorus or ﬂanger.
32: Stereo Phaser 1
In Phaser 1, the left channel modulation
signal is in phase and the right channel
modulation signal is out of phase. This
produces a wide stereo phaser effect.
33: Stereo Phaser 2
This stereo effect contains two phasers.
In-phase modulation is fed to both channels.
17A Phaser 1
Mod Depth (Mod)
Mod Speed (M.SPO.)
For effects 32 and 33, dynamic modulation (16C) can be used to control the Mod Speed.
17B Phaser 1
17C Phaser 1
The central frequency around which phase shifting is
The amount of phased signal that is fed back into the effect.
Minus values invert the feedback signal phase