THE EBS UNICHORUS LET YOU CHOOSE BETWEEN LOW NOISE STUDIO QUALITY CHORUS, FLANGE AND PITCH MODULATION EFFECTS. Analog Processing. The pedal is built with the best analog processing circuitry available. This gives a smoother, warmer and fatter sounding chorus/flange effect, useful both for live and studio performances. The pedal output can run in mono or stereo. Effect mix level. Under the hood of the UniChorus, there's a mix level control that let you decide how much or little of the effect you'd ilike to be blended with the original tone. See the manual for details. Evolution. The UniChorus was first introduced in 1997. From the 2008 edition improvements added 3 dB higher headroom, higher sensitivity (makes it easier to dial-in) and new analog circuitry with higher dynamics and lower noise, as well as true bypass switching technique. Not just for bass players. The UniChorus is suitable for bass as well as guitar and keyboard.