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Roland PB-300 Rhythm Plus

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    The Roland PB-300 Rhythm Plus is a preset analog drum machine originally released to expand on the Roland HP-300 and HP-400 pianos. The first of Roland’s digital pianos to feature MIDI integration. It was also used alongside the PR-800. It offered a Master/Slave switch, accent level control and variation switches, and was the last fully analog drum machine from Roland.


    The PB-300 has 16 preset rhythms, plus a "fill-in measure" knob that can insert a break every 2,3,8,12 or 16 bars. You can also trigger the break manually with a button on the front panel, or with a foot switch. On the back of the unit there's an accent knob, that allows some amount of volume variation within the rhythms. The 8 sounds are: bass drum, snare drum, low tom, high tom, cymbal, open hi-hat, closed hi-hat and clave.

    Type: Analog
    Synthesis: Subtractive
    Pattern Engine
    Programming: Presets
    Sounds Per Pad
    Sounds Per Pad: 1
    Sources: Synthesizer
    Polyphony & Tuning
    Polyphony: 8
    Timbrality: 8
    Tuning: Standard
    Modes: Polyphonic
    Patterns User: 1
    Patterns Preset: 16
    Case: Desktop
    Controls: Buttons, Knobs, Sliders, Switches
    Dimensions (WxDxH): 314 x 118 x 172 mm
    Weight: 2.3 kg
    MIDI / Sync / Trigger
    Audio Outputs: 1/4" Phone Jack, Mono Out
    Audio Output Count: 1
    Inputs: 1 x 1/4"
    MIDI Ports: IN, OUT
    CV Ports: DIN
    Power: 8 w
    Used: $199-$239
    Released: 1983
    Manuals & Documents

    YouTube Videos
    References & Sources

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