Fulltone Custom Shop Supa-Trem2 Stereo Tremolo Pedal Each channel has an N.O S. Fairchild 2N5484 JFET as the very first thing your guitar hits. Tap Tempo, with speeds so slow that it takes 6+ seconds to pan between the outputs, or speeds in excess of 200bpm. "Phase Correlation" knob so that you can throw the outputs any degree in or out of phase with each other. External volume control with 15db of available boost. 3-way Waveform switch.