"this unit features a 24db. 4 pole analog voltage controlled filter, amplifier each with envelope generator for processing any input, such as synths, guitar, bass, and anything else you can think off. it can be triggered from MIDI, or audio trigged. it has 3 inputs, a voltage controlled filter, voltage controlled amp, and velocity sensitivity. there are jacks for inputs, CV pedal input, MIDI in/out/thru, and power. envelope generator can be set to single trigger, or multi trigger(retriggers every time you strike another key even if you're already holding one down.) all of this comes in a one rack space unit."