Check the listing for details. Electro-Harmonix Slammi Plus Polyphonic Pitch Shifter/Harmony Effects Pedal. Condition: New. Listed at 192.30 USD. The Electro-Harmonix Slammi Plus polyphonic pitch-shifter flawlessly transposes your pitch in two different directions over a +/- 3 octave range: transpose up, down or both, simultaneously! Staggering whammy effects and dive bombs, bends, harmonies, cross-fades between your dry and transposed sounds, cocked pitch shifting—this pedal does it all. The 11-position Shift switch selects the maximum transposition starting with D (Detune), a shift of 17 cents that creates a chorus or doubling effect.The Dual setting outputs two pitch-shifted signals. The first follows the Shift knob as if in UP mode. The second transposed signal depends on whether the Slammi Plus is set to Pitch or X-Fade.In Pitch mode the secondary shifted signal bends at the same rate as the primary signal.