Alesis SR-18

The Alesis SR18 features cutting-edge drumsets, electronic drums, one-shot hits, and modern percussion sounds for any cutting-edge musician’s performances and compositions.
From country to hip-hop and everything in between, SR18 nails it on the first take. SR18 has an effects engine with Alesis reverb, EQ, and compression so you can output recording or performance-ready sounds.
Alesis' exclusive Dynamic Articulation™ technology modifies sample sounds so they change as you play them. This results in sounds that respond accurately not only to dynamic changes, but also with the appropriate timbral and color changes you'd expect from their acoustic counterparts.
You can plug in an instrument, such as a guitar, and play along for setup simplicity. You can play in bass parts using the pads on SR18 or connect a MIDI keyboard for fast, musical low end.
SR18 can be powered by AC or batteries, so whenever or wherever you need to lay down a groove.

Features:

More than 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
Large, 32MB sound set with percussion bank and bass synth
100 preset patterns, 100 user locations
12 velocity sensitive pads
Tap tempo for instant beats exactly as you want them

Technical Data:

Sound set: 32MB, multi-sampled
Polyphony: 32 voices
Inputs: 1/4" instrument (guitar)
Outputs: 1/4" stereo pair, 1/4" TRS, 1/4" TRS stereo headphone
MIDI: in, out/thru
Footswitch: two inputs – start/stop, count/A/B/fill
Comes with: SR18 drum machine, AC adapter, Quick start guide