AKAI MPC500

Battery powered (6 AAs) or wall powered (AC adapter included)
Pattern-based 48-track sequencer with 16 MIDI channels
32-voice drum/phrase sampler with up to 128MB RAM
Velocity and pressure-sensitive pads for responsive, accurate programming
12-level function places one sound on all pads with progressive level or tuning per pad
Compact Flash drive and USB port (Mass Storage Class)
Support for standard WAV files and MIDI sequences
Analog I/O, headphone output, MIDI I/O
Sounds included to get started quickly
Four-way sample layering and velocity switching per pad
Low-pass filter with resonance per voice
On-board effects: two stereo effects and a master effect