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Oberheim SEM with patch panel

Synthesizer Expander Module

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SEM with patch panel 1SEM with patch panel 2SEM with patch panel 3SEM with patch panel 4
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Oberheim SEM with patch panel
Oberheim SEM with patch panel
900.00 street price

In 2009 Tom Oberheim decided to revive SEM module which was released in 1974 becoming a real classic.

In the modern edition almost all functional blocks have been preserved without any introduction:

  • Two discrete voltage controlled oscillators (VCO) producing sawtooth and square waves.
  • A famous two-step voltage controlled filter (VCF), state variable (low, high, frequency cut).
  • LFO producing a triangular wave.
  • Two envelope generators with independent adjustment of ADS parameters. Routed to VCF and VCA.

This module is adapted to work in a modular system - the front panel offers CV jacks. 33 slots (3.5 mm mini-jacks).

Country of origin / production: USA

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More info
Usage area
Modular System 
Sound Module/ Tone Generator 
Analogue (A) 
Tone Generator / Sound Synthesis
Oscillator Type VCO (Voltage Controlled Oscillator)
Oscillators per voice2
Waveform/ Spectral form (main generator) Pulse Width Modulation (PWM)
Waveform/ Spectral form (main generator) Saw
High-pass Filter (HPF) 
Low-pass Filter (LPF) 
Band-pass Filter (BPF) 
Band-reject Filter (BRF/ BEF) 
Envelope Generator (EG)
Audio out
Analogue: 1/4" (6.35mm)1
Audio in
Analog 1/8"1
Voltage 110V
Voltage 60Hz
Power Supply Built-in, internal
Weight3.5 kg
Case/ body
Production start2009

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