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
Yamaha PSR-200 and PSR-300 Manual
Yamaha Portatone PSR-300 Service Manual [Three Wave Music] ($12)
Power Supply Replacement for YAMAHA PSR-300 300F 300M KEYBOARD ADAPTER 12V ($14.53)
Yamaha PSR-200/PSR-300 Portatone Owner's Manual ($29.95)
Yamaha Sonogenic Keytar Shs 300 (Blue Colour) ($584)
Yamaha EZ-300 61-Key Portable Keyboard with Lighted Keys ($595)
Yamaha PSR-EW300 76-Key Portable Keyboard | NO 12V POWER SUPPLY INCLUDED 2017 - Present - Black ($175)
Yamaha PSR-EW300 76-Key Portable Keyboard 2017 - Present - Black ($185)
Yamaha - PSRSX900 - Arranger Keyboard - 61-Key - w/PA300C Power Adapter ($2,299.99)
Power Supply Replacement For The Yamaha Psr Ew300 Keyboard Adapter Uk 12 V ($14.53)
Yamaha PSR-300M AWM Digital Synth MIDI Workstation w Power Supply ($149.50)
Yamaha Portatone PSR-300M Service Manual [Three Wave Music] ($12)
Portatone PSR-A300 Overall Circuit Diagram [Three Wave Music] ($20)
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