The PSR-300 is an early waveform-ROM-based keyboard (yamaha calls this AWM, for Advanced Wave Memory).
Year Released: 1991
Keyboard: 61 keys with velocity
Polyphony: 28 notes
ROM: 100 sounds, 50 rhythms
Dimensions: 931 mm x 347 mm x 137 mm
Weight: 4.7 kg excluding batteries
This keyboard is MIDI-enabled.
This keyboard has built-in 2-watt stereo speaker(s).
Batteries: 6 x D
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