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PPG 390 Drum Unit

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    The Prototype PPG 390 Drum Unit was an 8 channel rack that featured 8 bit samples played from EPROMs. Each channel had controls for volume, triggering and an output.

    There were also two controls for sample frequency. The first knob was set to control the odd numbered channels: 1, 3, 5, & 7. The second was setup to control the even channels: 2, 4, 6, & 8. It is believed there were only two of these units made.
    Type: Digital
    Synthesis: ROM
    Pattern Engine
    Programming: Step
    Sounds Per Pad
    Sounds Per Pad: 8
    Sources: ROM
    Sounds Notes:
    + 13 - 30 kHz frequency control
    + 70 - 160ms sample playback time
    Sampling: 8 bit
    Sampling Notes: + No on-board smampling. Samples had to be loaded via EPROMs
    Polyphony & Tuning
    Polyphony: 8
    Timbrality: 8
    Tuning: Standard
    Modes: Polyphonic
    Patterns User: 0
    Drum Kits User: 1
    Storage: Internal
    Case: 19" Rack
    Rack Size: 3U, Full
    Controls: Buttons, Knobs, Modulation 1/4" Jacks, Switches
    Display Type: LED
    Weight: 4 kg
    MIDI / Sync / Trigger
    Audio Outputs: 1/4" Phone Jack, Mono Out, Stereo Main
    Audio Output Notes: 8 x 1/4" Outs
    Inputs: 8 x 1/4" Triggers
    CV Ports: Trigger In
    DAC Bits: 8
    DAC Frequency Rate: 30
    Power: 220-240V
    Used: 308 GBP
    Released: 1982
    Units Made: 2
    Design Notes:

    Designed by PPG, Hamburg Germany.
    Manuals & Documents

    YouTube Videos
    References & Sources
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