PORTABLE PRO-GRADE DRUMS FOR MOBILE MUSICIANS.Alesis knows drums. The legendary SR16 ignited the drum-machine market in 1990 and has remained a classic ever since. The SR18 is designed to meet the demands of today's musicians.Introducing the SR18. Following in the tradition of its ancestor, the SR18 is loaded with cutting-edge drum kits, electronic drums, hits, and up-to-date percussion sounds for any modern drummer. From hip-hop, to country and everything in-between, the SR18 has you covered.The integrated effects engine includes Reverb, EQ and Compression for customizing the sounds to your liking. Our exclusive Dynamic Articulation feature enables a drum sound to change its tonal content as it's played harder for truly realistic performances. Since the SR18 can be powered by AC or batteries, it ensures that whenever you need to lay down a groove, you're fully-equipped.The new era of drum machines is here, only from Alesis. * Large, 32MB sound set with percussion bank and bass synth * Over 500 Drum and percussion sounds and 50 bass sounds * Built-in Effects- Reverb, EQ and Compression * Pattern Play Mode enables different patterns to be triggered from the pads directly * Mute/Solo Function for parts- Drums, Bass and Percussion and per pad within a bank * AC and Battery Power capability (6 AA's- not included) * 32-voice polyphony * Backlit LCD * MIDI In and Out * Two Aux Outputs on TRS jack * Drum Roll function * Headphone output * Instrument Input (1/4) * 100 Preset Patterns and 100 User Patterns * Tempo / Value dial * Footswitch control- Start/Stop and Count/A-B fill * 12 Velocity Pads Dynamic Articulation * Tap Tempo for instant beats exactly as you want them * AC and Battery Power capability (6 AA's - not included with product) and AC Adapter * 32 voice polyphony * Backlit LCD * MIDI In and Out * TRS 1/4 Aux Output * Drum Roll function * Headphone output * Instrument Input * 100 Preset Patterns and 100 User Patterns * Tempo / Value dial * Footswitch control- Start/Stop and Count/A-B fill