Alesis SR-18

Large, 32MB sound set with percussion bank and bass synth / Over 500 drum and percussion sounds and 50 bass sounds / Built-in Alesis effects: reverbs, EQs, and compression / Pattern Play Mode enables different patterns to be triggered from the pads directly / Programmable Drum Roll function / Mute/Solo Function: mute drums, bass, and percussion or individual pads / Flexible wall (adapter included) and battery powering (six AA, not included) / Backlit LCD / 100 preset patterns, 100 user locations / 12 velocity sensitive pads / Tap tempo for instant beats exactly as you want them