GForce Oberheim OB-1 [WiN-MAC]

Oberheim OB-1 VST plugin
  • Publisher: GForce
  • Product: Oberheim OB-1
  • Release: R2R
  • Version: 1.0.0 Incl Keygen
  • Format: VST/VST3/AAX/AU
  • Requirements: Windows 7+ macOS 10.13+

The GForce Oberheim OB-1 virtual instrument represents a significant milestone in the realm of software synthesis, meticulously emulating and enhancing the iconic Oberheim OB-1 hardware synthesizer. Developed in collaboration with Oberheim, this plugin not only captures the essence of the original 1978 monophonic synthesizer but also expands its capabilities to meet the demands of modern music production. This article provides a comprehensive overview of the GForce Oberheim OB-1, detailing its key features, system requirements, compatibility, and technical specifications.

Key Features

Authentic Emulation with Modern Enhancements

The GForce Oberheim OB-1 maintains the rich, aggressive tonal character of the original hardware while introducing several modern enhancements:

  • Polyphony: Expanded from the original monophonic design to support up to 16 voices.
  • Unison Mode: Allows for thick, layered sounds in both monophonic and polyphonic contexts.
  • Enhanced Signal Path: Incorporates new waveforms, waveshape modulation, and discrete level controls for oscillators, sub-oscillator, and noise generator.

X-Modifier Technology

The X-Modifier system represents a significant advancement in modulation capabilities:

  • X-LFO and X-ADSR: Pre-configured modulation paths for rapid sound design.
  • Extensive Parameter Modulation: Allows for complex modulation of nearly every synthesizer parameter.

Expanded Filter Options

  • Dual Filter Modes: Choose between 2-pole and 4-pole configurations.
  • High Resonance: Capable of producing characteristically aggressive, “screaming” tones.
  • Additional High-Pass Filter: Enables more precise spectral shaping.

Advanced Modulation and Performance Features

  • LFO Synchronization and Retrigger
  • Envelope Looping
  • Discrete Key Tracking
  • Cross-Modulation
  • Pan Spread

Integrated Effects

  • Chorus
  • Delay
  • Reverb

Performance Controls

  • Four Versatile Macros: Real-time control over multiple parameters simultaneously.
  • Arpeggiator and Sequencer: Built-in tools for creating rhythmic and melodic patterns.
  • Sequencer Features: Individual step length and probability settings, with a dedicated track for Macro 4 automation.

User Interface and Preset Management

  • Fully Scalable UI: Adapts to various screen sizes and resolutions.
  • Advanced Patch Browser: Facilitates efficient preset management and sound discovery.
  • Extensive Preset Library: Over 300 production-ready presets designed by industry professionals.

System Requirements and Compatibility


  • Intel or Apple Silicon Mac
  • macOS 10.13 or later
  • Formats: Standalone, AudioUnit, AAX, VST2, VST3
  • Native support for both Intel and Apple Silicon architectures


  • 2 GHz CPU or faster
  • 2 GB RAM minimum
  • Windows 7 or later
  • Formats: Standalone, VST, VST3, AAX

The plugin is compatible with all major digital audio workstations (DAWs) that support the aforementioned plugin formats.

Technical Specifications

Audio Engine:

  • Sample Rates: Up to 192 kHz
  • Bit Depth: 32-bit floating point internal processing


  • Two main oscillators with multiple waveforms
  • Sub-oscillator
  • Noise generator
  • Waveshape modulation capability


  • Main Filter: Switchable between 2-pole (12 dB/octave) and 4-pole (24 dB/octave) modes
  • High-Pass Filter: Additional filtering for precise sound shaping


  • Two ADSR (Attack, Decay, Sustain, Release) envelopes
  • Looping capability for complex modulation


  • Multiple waveforms
  • Sync and retrigger functions

Modulation Matrix:

  • X-Modifier system for extensive modulation routing
  • Direct modulation of most synthesizer parameters


  • Up to 16 voices
  • Mono unison mode


  • Chorus: Stereo width and depth controls
  • Delay: Tempo-syncable with adjustable feedback and mix
  • Reverb: Room size, damping, and mix controls


  • Multiple playback modes
  • Adjustable rate and range


  • Step sequencer with up to 32 steps
  • Individual step length and probability settings
  • Dedicated track for Macro 4 automation

MIDI Implementation:

  • Full MIDI CC support for all parameters
  • MPE (MIDI Polyphonic Expression) compatibility

CPU Usage:

  • Optimized for efficient performance across various system configurations


  • Vector-based graphics for crisp rendering at all zoom levels
  • Adjustable UI size from 70% to 200%

Preset Management:

  • Categorized preset browser with tagging system
  • Import/export functionality for user presets

The GForce Oberheim OB-1 excels in reproducing the characteristic “angry” and “almighty” sound of the original hardware. Its emulation of the OB-1’s unique filter behavior is particularly noteworthy, capturing the aggressive resonance that made the original synthesizer stand out.

The addition of polyphony and unison modes significantly expands the plugin’s versatility, allowing for rich pad sounds and massive lead tones that were not possible with the monophonic original. The X-Modifier system provides unprecedented depth in sound design capabilities, enabling complex modulations that can transform simple patches into evolving soundscapes.

The integrated effects, while not part of the original hardware, are well-implemented and complement the synthesizer’s core sound. They allow for in-the-box processing that can reduce the need for external effects plugins in many scenarios.

CPU performance is generally efficient, with the plugin demonstrating good optimization even when utilizing multiple voices and extensive modulation. However, as with any complex virtual instrument, high polyphony settings combined with heavy use of the X-Modifier system can lead to increased CPU load on less powerful systems.

The GForce Oberheim OB-1 represents a significant achievement in virtual instrument design, successfully bridging the gap between vintage analog charm and modern production requirements. Its faithful emulation of the original OB-1’s core sound, combined with thoughtful enhancements and expansions, positions it as a versatile tool for a wide range of music production scenarios.

The plugin’s ability to produce both classic analog tones and complex, evolving sounds makes it particularly appealing for genres ranging from techno and electro to film scoring and experimental electronic music. Its extensive modulation capabilities and integrated performance features provide ample room for creative exploration, while the well-designed preset management system ensures that users can quickly access and organize sounds.

For producers, composers, and sound designers seeking to incorporate the unique character of the Oberheim OB-1 into their work, the GForce emulation offers a compelling solution that goes beyond mere replication, providing a platform for sonic innovation rooted in a classic synthesizer legacy.

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