Cherry Audio Has A Christmas Present For You

Though it is only December 1st, but Cherry Audio has a Christmas present for you.

Cherry Audio has announced an early Christmas present for electronic musicians, a free virtual instrument plugin for Mac + Windows, based on the classic 1974 Oberheim Synthesizer Expander Module (SEM).

What Cherry Audio say about it:

“Originally released in 1974, the keyboardless, mono module was intended as a companion to the one of the earliest digital sequencers, the Oberheim DS-2. Soon thereafter, Oberheim linked multiple Synthesizer Expander Modules to an early digitally scanned keyboard to create some of the first polyphonic synthesizers, used by legendary artists including Joe Zawinul, Toto’s Steve Porcaro, Styx, and Jan Hammer.

Though it was a simple, barebones monosynth, the Synthesizer Expander Module possessed a unique tone quality, courtesy of its 12 dB/oct state-variable filter. With lowpass, bandpass, highpass, and notch modes, this flexible filter was the star of the show. We’ve precisely recreated it here with a filter section and Phasor effect programmed by award-winning synth designer Mark Barton (MRB).”


  • “Ultra-accurate” dual oscillators
  • Multi-mode filter emulation by synth designer Mark Barton (MRB)
  • Unison mode
  • 100 presets for Basses, Leads, and Percussion
  • Unique “Phasor” effect section emulating the vintage Oberheim stomp box, also replicated by Mark Barton
  • Studio-quality Echo effect with tempo sync
  • Complete MIDI control and DAW automation for all controls, with easy-to-use MIDI learn and mapping (Preset and Global)
  • Focus zoom-in feature, as well as standard UI zoom and resize via drag
  • Complete documentation available directly online from the instrument or in downloadable PDF format
  • Highly optimized DSP for optimal performance
  • User-adjustable oversampling control

Synthesizer Expander Module is available now as a free download.

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