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Electro Harmonix DRM 15 Digital Rhythm Matrix

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    Released in 1982 the Electro Harmonix DRM 15 Digital Rhythm Matrix is a versatile drum machine in a pedal format. The unit offers 4 style categories with 4 variations of each style. It also allows for some flexibility with how the user uses it or in simpler terms minimal editing by way of the delete button.

    The unit also has the famous Space Drum sound found on other products from Electro Harmonix. the Space Drum sound has a dedicated on/off switch when it is not being used. The DRM-15 also offers lock IN and Clock Out for syncing with other rhythm machines and analog devices.
    Type: Digital
    Synthesis: ROM
    Pattern Engine
    Programming: Presets
    Pattern Notes:
    +16 Patterns
    +4 Patterns Of Styles
    +4 Patterns Per Style
    Sounds Per Pad
    Sounds Per Pad: 1
    Sources: ROM
    Polyphony & Tuning
    Polyphony: 8
    Timbrality: 8
    Tuning: Standard
    Modes: Polyphonic
    Patterns User: 1
    Patterns Preset: 16
    Case: Pedal
    Controls: Knobs, Modulation 1/4" Jacks, Switches
    Display Type: LED
    MIDI / Sync / Trigger
    Audio Outputs: 1/4" Phone Jack, Mono Out
    Audio Output Count: 1
    CV Ports: DIN
    Retail: $189
    Used: $$81-$800
    Released: 1982
    Design Notes:

    There were two different versions of the DRM-15 that had a slight difference between them. The first edition featured an additional audio output for the bass drum sound. The latter versions did not and instead added the Clock Out output.
    Manuals & Documents

    YouTube Videos
    References & Sources

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