Alesis SR18 Drum MachineThe SR16 has dominated the drum machine market since 1990 and continues to be in demand today. The next generation SR18 is loaded with cutting edge drumsets, electronic drums, one shot hits, and modern percussion sounds for any cutting edge musicians performances and compositions. Features 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