Alesis SR-16 Stereo Drum Machine Standard

16-voice polyphony. 12 velocity-sensitive pads. Over 200 drum and rhythm samples. Dynamic Articulation is velocity-sensitive. 50 preset rhythm patterns with A and B variations plus A and B fills. 4 different rhythms in each pattern. 24-bit sample/DAC resolution. 20-255BPM tempo range. 4 outputs. Headphone output.