Controls
- Intensity
- controls the depth/amplitude of the modulation (the size of the range in which the effect sweeps).
- Speed
- controls the speed/rate of the LFO wave that controls the effect
Video
(2011-02-02) Jen KPS 900 phase shifter by simplexiammine
(2020-01-04) Jen KPS 900 Vintage Phase Shifter guitar pedal by Joshbb

