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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
Sound Engine: 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.
References & Sources

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