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Product Info – Yamaha PSR 300

Yamaha PSR 300 Portable Keyboard - (N 59,500)

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

The PSR-300 is an early 1990s Yamaha digital keyboard, featuring first-generation AWM (Advanced Wave Memory) waveform ROM. Notable characteristics of this accompaniment keyboard include 100 AWM voices, a polyphony of 28 notes, 50 auto-accompaniment styles, touch response, MIDI, stereo speakers, and 15 demo songs.
Other nice features include split and fingered mode for the left hand, separate controls for accompaniment volume, transpose, and tempo, and a dedicated button for setting the split point.

The accompaniment controls consist of an "intro/fill in" button, a "synchro start on-off/ending" button, and the obligatory start/stop button. You can also layer two voices using the "Dual Voice" on-off button (great for improving/fattening the base sounds). Then there is the "sustain" button I was talking about earlier, and a "Harmony" control (adds harmonized parts to the right hands) - you can pick between Duet, Trio, Block, Country and Octave harmonized parts, very handy, especially with the jazz styles. A typical omission for keyboards of this era is the absence of an input for a sustain pedal - In its place, we find a "Sustain" on-off button on the front panel (I remember a similar setup on my very first digital keyboard, the Gem DSK-8). Even though the early sampling technology is a bit raw, certain tones are absolutely a joy to play, and several of them are very nice-sounding. Some of the synth string patches even exhibit a retro analog nature.

AWM, Advanced Wave Memory Stereo sampling is a sampling system, creating superb wave data that mirrors the sound and expression of the original instrument by using advanced digital technologies. It creates a unique, rich sound by using multiple waveforms.

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