Check the listing for details. Electro-Harmonix Slammi Plus Polyphonic Pitch Shifter Pedal. Condition: New. Listed at 192.30 USD. Polyphonic Pitch Shifter + Expression Pedal Transpose, detune, texturize, and harmonize all from the same pedal: the Electro-Harmonix Slammi Plus. Think of the Slammi Plus as an EHX Pitch Fork and a space-saving expression pedal all in one, with a powerful new dry/wet crossfade feature baked right in. Tracking is lightning fast and glitch-free as ever, even on chords, and a ±3-octave range gives guitar, bass, and synth players plenty of room to experiment. Transpose keys in seconds to suit your vocalist. Pull off whammy and dive-bomb tricks without whipping out your trem guitar. Create chorus and doubling FX on the spot. An X-Fade function even blends seamlessly between wet and dry tones — stack fifths on your riffs and thirds on your leads at will and as subtly as you please.