Boss DR-880 Dr. Rhythm Drum Machine EZ Compose feature for quick, hassle-free programming. Four assignable footswitch and expression-pedal inputs. Individual outputs, digital out, USB port Guitar/bass input, multi-effects, COSM amp models. 20 velocity-sensitive pads 440 drum and percussion sounds, 40 bass sounds with COSM bass-amp models 3 independent insert effects (EQ and compression), TSC (Total Sound Control) featuring 3-band EQ 500 preset and 500 user patterns; add fills, ghost notes, chord progressions and more