A huge, 16MB sound ROM with 640 internal programs and 500 mixes makes the Alesis QS6.2 61-Key Synthesizer an amazingly flexible, musical, and easy-to-use synth. All that muscle is matched with 61 keys and 64-voice polyphony to provide unparalleled freedom for your fingers. State-of-the-art, 24-bit D/A conversion; internal stereo digital effects processing; a PCMCIA expansion slot; MIDI I/O; and stereo outputs.