The Seymour Duncan Shape Shifter

The Seymour Duncan Shape Shifter Tremolo pedal is an all analog, dual mode tremolo pedal. The SFX-07 Rate mode allows a steady speed from 1 to 20 cycles per second to be manually adjusted by the rate knob. In Ratio mode, the tap switch sets the rate of the tremolo and also gives you the option of setting a tap-to-note ratio: 1:1, 2:1, 3:1, or 4:1. With this function the Shape Shifter Tremolo lets you decide on 1/4 notes, 1/8 notes, triplets, or 1/16 notes. Another distinctive feature of the Shape Shifter Tap Tremolo is the Shape control. Normally a tremolo has an even relationship between the time that the volume increases and decreases. With the Shape knob at 12 o’clock, this characteristic is maintained, however when you move it left or right, the relationship changes. The SFX-07 will deliver a short volume increase followed by a longer volume decrease or vice-versa which will add a very different feel to the overall effect.

Shape Shifter Tremolo Tone

The Seymour Duncan ShapeShifter is a very natural sounding Tremolo. The all analog signal path keeps your tone pristine and gets a very vintage vibe from the Shape Shifter. With the Wave control, the SFX-07 can deliver smooth creamy tremolo or choppy square wave style chop. When a short volume increase is coupled with a long volume decrease via the Shape control, the tone gets very percussive and piano-like. We found the Tap control extremely useful in a live situation where the drummer is your metronome and quick changes are a must. The Seymour Duncand SFX-07 ShapeShifter Tremolo is the most versatile tremolo pedal we’ve seen and it also delivers the vintage ‘50’s style tone that most tremolo fans will adore.