Like its brother, the Yamaha PSR-4600, the PSR-4500 is based on 12-bit PCM waveforms and 2-operator FM synthesis. It came out around the same time as the Yamaha SY22, SY35, and TG33 synthesizers and has a similar voice architecture. Rather than having standard pitch and modulation wheels, it has roll bars on the front that control modulation effects.
Year Released: 1989
Keyboard: 61 keys
ROM: 100 sounds, 100 rhythms
Dimensions: 1221 mm x 392 mm x 146 mm
Weight: 8.8 kg
This keyboard is MIDI-enabled.
This keyboard has built-in 8-watt stereo speaker(s).
Batteries: D x 6