The Seymour Duncan Shape Shifter tremolo pedal features classic tremolo sounds yet allows control over every function for more wild tones, all in a true bypass and all-analog pedal. The first version comes in a gray enclosure with mono outputs, while the second version has a purple enclosure with stereo outputs. The Wave and Shape knobs provide access to customization of the waveform of the tremolo, with the Shape Shifter also featuring Depth and Speed knobs and a Tap Tempo footswitch. The Rate/Ratio knob changes the function of the Speed knob to either keep time with or multiply your tapped tempo, and the Channel Phase knob on the stereo version controls how out-of-phase the left and right channels are.

Product Specs

  • Shape Shifter Stereo Tremolo Pedal
  • Purple
  • 2010s
Made In
  • United States

From the Price Guide

Reviews for the Seymour Duncan Shape Shifter
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  • True sound

    Verified Purchase

    Great sounding, true-blue tremolo but with lots of options to expand. Didn't see need for tap tempo but now i get it! Stereo options allow for added depth if you have the ability to use this. VERY pleased with device - I use it a LOT. (am playing a bunch of "styles").

  • Really cool sounds

    Verified Purchase

    I just love the tremelo sound on this pedal. Very cool, very diverse. I need to spend more time working on the settings to better learn the whole range. There are some samples on Duncan's website that is a great start!

  • Yet to find anything better...

    Seymour Duncan is obviously not known for their pedals but this tremolo knocks it out of the park. It's extraordinarily easy to use and adjust while playing live. Everything from the subtle sine wave to the squarest helicopter chops all sound very musical. Best trem I've had and the stereo out is fu…

  • Great Pedal but the Volume Drop was a Dealbreaker!

    I loved everything about this pedal. I looked at all of the demos, read all the reviews, and it seemed perfect. I got mine used, and instantly fell in love with it. The Tap Tempo feature is especially super useful and very accurate. It felt like an EHX Pulsar, but with more options and more usable r…

  • Great epic, ambient tones

    Verified Purchase

    It's just different from the other effects i'm used to but it sounds immense. Love the tap tempo and ratio knob. It's incredible!