The Spiral Array – it’s a Chorus pedal with a difference... It is actually three distinctly different chorus pedals in one box. THE SPIRAL ARRAY houses 3 classic chorus sounds, painstakingly recreated from the classic era of Chorus the mid 70’s to the mid 80’s. An analog chorus based on a thick lush 1976 Boss CE1, a spatial digital chorus based off the 1979 Roland Dimension D and the renowned uber rich sounding 1985 Dytronics Tri Stereo Chorus, All in one box.