This unit is in New condition. EP–133 K.O. II is a powerful sampler, sequencer and composer. Record sounds around you, sequence your samples and loops, tweak and automate filter, pitch and more, add stereo effects, compressor and next generation punch-in effects - go from idea to track faster than ever. Resampling: Sample any sound source on or off the K.O. and process it through effects, and make a brand new sample from it. Song Mode: Adds the ability to chain scenes and create longer, more structured track arrangements. Sidechaining: Allows one sound to control the volume of another, perfect for kick and bass groove control. More Polyphony: Increased voice count, now supporting 16 mono or 12 stereo voice polyphony. More MIDI: Pass notes between units with MIDI Thru, keep your gear in sync, and pair up to 16 devices simultaneously.