Oberheim

OB-8

Synthesizer

Main Details
Maker Oberheim Company
Function
Channels/Tracks
  • 8 × Voice
Form Factor Keyboard
Date Produced 1983-1985
Dimensions 101.6 x 50.8 x 15.24 cm
Weight 17.2 kg
Power Source 95 -240 Volts AC, 50i60 Hz, 45 Watts
Notes Polyphony - 8 voices
Oscillators - 2 vco's per voice: saw, pulse, triangle
Memory - 120 patch programs, 12 split programs, and 12 double programs; external cassette storage; MIDI SysEx data dump
Filter - Switchable 2-pole or 4-pole VCF w/ ADSR
LFO - Triangle, Square, Ramp, Samp+Hold
Keyboard - 61 keys (can be split or doubled); no velocity or aftertouch
Arpeg/Seq - 8-note arpeggiator with external sync source
Control - MIDI (Channels 1-9) Could be added as a retro-fit. On later revisions it was installed from the factory.
Date Produced - 1983 - 1985
Additional Specifications
CEM3340 x16 Curtis chip (IC) VCO (Saw,Tri,Pulse)
CEM3320 x8 Curtis chip (IC) 24 dB/Oct. VCF multimode filter
CEM3310 x16 Curtis chip (IC) ENV ADSR
CEM3360 x2 Curtis chip (IC) VCA x2

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