Subdecay Quasar V4 Phase Modulator Effect Pedal - UsedThe Quasar Phase Modulator is an all analog phaser, and many new features in this V4 model are normally only found in fully digital effects, such as: synchronized tremolo and chopper effects, and active volume regulation that eliminates the drastic volume disparities typical of many phasers. This used pedal is in good working condition, and includes its original box.