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SoundMaster Memory Rhythm SR-88

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    The Rhythm SR-55 from SoundMaster Memory was released in 1981 as an all analog drum machine aka drum computer in it's time. The unit is programmable with an awkward way of programming by multiple presses of the play or pause button after selecting one of the 4 on board sounds.

    It has a sequencer 6 x 16-step (4/4) patterns and 2 x 12-step (3/4 or 6/8) patterns, with A and B variations of each. You can play just A, just B, A followed by B or A then B every 4,8 or 16 bars (like a fill-in).

    The 4 sounds are Kick, Snare, Closed Hat and Cymbal. An on board foot switch input allows for start and stopping of the sequencer. It also has Clock on pulse or of the Cymbal. Runs on an AC adapter or batteries. At the time it was said to be in competition to the Boss DR55.
    Type: Analog
    Synthesis: Subtractive
    Pattern Engine
    Programming: Presets, Real Time, Step
    Sounds Per Pad
    Sounds Per Pad: 1
    Sources: Synthesizer
    Polyphony & Tuning
    Polyphony: 4
    Timbrality: 4
    Tuning: Standard
    Modes: Polyphonic
    Patterns User: 8
    Patterns Preset: 1
    Storage: Internal
    Case: Desktop
    Controls: Buttons, Knobs, Modulation 1/8" Jacks, Start / Stop Pedal, Switches
    MIDI / Sync / Trigger
    Audio Outputs: 1/4" Phone Jack, Mono Out
    Audio Output Count: 1
    CV Ports: Trigger Out, 5 V Octave
    Used: $49-$175
    Released: 1981
    Manuals & Documents

    YouTube Videos
    References & Sources

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