Seymour Duncan Polaron Analog Phase Shifter PedalDeep, musical phase shiftingwith an all analog signal path coupled with state of the art digital control, delivering classic swirls, futuristic vortices, auto wah vocalizations, and much more. Analog phase shifters have been a huge part of the soundtrack to our lives. Their swirly, dreamy, spacey sounds can take a normal tone and transform it into something otherworldly. Some phasers are super simple one knob affairs, others are more complex machines.