Tom Oberheim and GForce Software Ltd. introduce Oberheim SEM \ Happy Birthday Tom Oberheim
GForce Oberheim SEM Featured Image

It’s so good to hear something that’s dear to my heart done properly in software.” Tom Oberheim, Synth Pioneer

GForce Software logo Gray BackgroundLondon, 7.7.22 – Tom Oberheim and GForce Software present GForce Oberheim SEM. 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+ categorized presets, and inspiration is just moments away.

And as it happens, it’s Tom Oberheim’s birthday today. Tom, Happy Birthday!

GForce Oberheim SEM Front Panel GUI

When we first worked with Tom Oberheim and Marcus Ryle (an Oberheim engineer during the 80s) to create the GForce Oberheim OB-E®Oberheim Logo - Black v2, they felt that there were no software emulations of the SEM that accurately recreated the sound and the ethos of the original monophonic SEM. We decided to change that, and under the close guidance of Tom and Marcus, we developed the GForce Oberheim SEM to ensure an experience that is truly authentic to the original instrument.

In the GForce Oberheim SEM, every section of the synth has been painstakingly emulated to ensure sonic authenticity. We’ve even modeled the authentic analog inaccuracies of the original SEM, blurring the lines between analog character and digital precision. All this makes the GForce Oberheim SEM the most authentic emulation of the SEM sound available.

The beauty of the SEM lies in its combination of great sound and simple to use architecture. That’s why, since its release in 1974, the SEM has remained highly coveted and musically relevant. Over four decades later, we’re beyond thrilled to release our software version with Tom Oberheim’s full blessing, collaboration, and endorsement” Dave Spiers & Chris Macleod, co-founders of GForce Software Ltd.

While staying true to the original SEM, we also added a number of enhancements to make the GForce Oberheim SEM even more useful for modern music production. Alongside a new VCO3, which doubles as an audio-rate LFO for additional modulation and FM possibilities, the SEM now has tempo-syncable LFOs and a host of performance controls via velocity and aftertouch. We’ve also integrated a fun, fast arpeggiator & sequencer, and added a stereo delay and a beautifully lush reverb to sonically complement your sounds.

Finally, we’ve included 400+ factory presets designed by Dave Spiers, Graeme Rawson, and Tom Wolfe, each created to demonstrate the incredible sonic character of the SEM. Every preset has been tagged, categorized, and is quickly accessible from the preset browser. The SEM even integrates with the GForce Oberheim OB-E, allowing you to load your SEM presets in either device. This enables you to quickly sketch out your sounds in the SEM, and then make them polyphonic in an instant.

GForce Oberheim SEM Expanded GUI

The GForce SEM manages to be both simple to use, and yet diverse. It has been a continual source of inspiration for me, and the depth and quality of the sound have kept my creativity flowing whenever I sit down to use it.” Tom Wolfe, Sound Designer.

Oberheim SEM – key features
Most authentic monophonic SEM experience and sound – small package, big sound!
The most playable SEM, full of character, and 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 (Arrow Keys Navigation)
Arpeggiator, Sequencer, Analog style Delay, Reverb
Undo/Redo, Extend, and Flip mode
SEM presets can be exported to and imported from OB-E
Extensive Velocity & Aftertouch modulation

Trap Promo Video:

Cinematic Promo Video:


SEM History & walkthrough Promo Video


More info

Oberheim SEM £49.99 +VAT with an intro price of £29.99 + VAT

Mac: Standalone Application, AudioUnit, AAX, VST, and VST3
PC: Standalone Application, AAX, VST and VST3


About GForce Software Ltd.
Specializing in vintage synthesizer modeling, GForce Software offers a range of products with the most authentic sonic and musical quality in the virtual arena. Our mission is to inspire composers and producers by providing well-crafted instruments and sounds, and to nurture those aspiring to learn and grow during their musical journey.





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