Electro-Harmonix Stereo PolychorusNOW IN THE NEW AND IMPROVED DIE CAST CHASSIS The final word in analog chorus pedals. The classic that Kurt Cobain and Adrian Belew relied on to create their signature sounds. The Stereo Polychorus provides the lushest stereo chorus, rich chiming flange, and the over the edge effects that made this versatile pedal legendary. Specifications Mode selectable analog effects: chorus, flange, double track and filter matrix Double track is a short slapback