GForce Software & Tom Oberheim Intro Oberheim SEM Software Synth

Tom Oberheim and GForce Software have introduced GForce Oberheim SEM, a software synth for Mac & Windows that recreates the sound of Oberheim’s classic synth design.

Here’s what they have to say about it:

“When Tom Oberheim created the first Oberheim® Synthesizer Expander Module (model SEM-1) in 1974, he had one goal – to make a synth that sounded great, whilst being extremely simple to use. In the decades since the release of this iconic synth, it’s been used by countless legendary musicians, making the SEM one of the most revered synthesizers of all time.

As well as painstakingly recreating the huge, unmistakable sound of the SEM, the GForce Oberheim SEM also recreates the ethos of the original – a simple monophonic synth that allows you to shape incredible sounds in an instant. And with Tom Oberheim’s seal of approval, you can be confident in its authenticity. Add to this more than 400+ categorised patches, and inspiration is just moments away.”

While GForce Oberheim SEM is designed to recreate the sound of the original, the software version of the synth feature several enhancements over the original.

Alongside a new VCO3, which doubles as an LFO with audio rate for additional modulation and FM possibilities, the SEM now has tempo-syncable LFOs with multiple wave shapes, and a host of performance controls via velocity and aftertouch. It also features an arpeggiator & sequencer, a stereo delay and a lush reverb.

Finally, it features 400+ factory patches designed by top sound designers, designed to demonstrate the sonic range of the SEM. Every patch has been categorised and is quickly accessible from the patch browser (arrow navigation friendly). The SEM also integrates with the GForce Oberheim OB-E, so you can load SEM presets in either device. This means you can sketch out your sounds in the SEM, and then make them polyphonic in an instant.


  • Recreation of the monophonic SEM experience and sound
  • Augmented with a 3rd VCO
  • 400+ factory Patches designed to fit in a mix, all tagged and categorized
  • Librarian for easy access to the presets
  • Sequencer, Arpeggiator, Stereo Delay, Reverb
  • Undo/Redo, Extended and Flip mode
  • SEM presets can be exported to and imported from OB-E
  • Extensive Velocity & Aftertouch modulation

Audio Demo:

Pricing and Availability:

The GForce Oberheim SEM is available now, with  an intro price of £29.99 + VAT (normally £49.99 +VAT).