Rack Extensions by Synapse Audio

Synapse Audio offers a choice of high quality rack extension plugins, tailored to Reason.

Obsession RE

Obsession brings the power of a great polyphonic vintage synthesizer to your fingertips. It combines the astute modeling of voltage-controlled oscillators (VCOs), voltage-controlled filter (VCF) and voltage-controlled amplifier (VCA) with a comprehensive individual voice control that has never been done before in this detail. Learn more

Obsession RE - frontside
Obsession RE - backside

The Legend RE

The Legend faithfully recreates the most famous vintage synthesizer of all times, with a history spanning more than four decades and countless appearances in recordings as well as live appearances all over the world. Learn more

The Legend RE - frontside
The Legend RE - backside


Antidote RE is a brand-new virtual-analog software synthesizer for Propellerhead Reason. This Reason-exclusive device manages to combine the highest audio quality, flexibility and a fast work flow in an extremely easy-to-use Rack Extension. Antidote has been specifically developed to complement Reason, and to perfectly integrate into its environment. Learn more

Antidote - frontside
Antidote - backside

RE-160 Compressor

The Synapse RE-160 is a high-quality RMS compressor, modeled after a famous studio classic. Its distinct compression characteristics make the RE-160 an indispensable tool in any studio setup. Learn more

RE-160 Compressor - frontside
RE-160 Compressor - backside

Fat Space Reverb

Fat Space is a completely novel type of reverb never seen before. With a largely customizable reverb envelope and introducing a new technology we call Liquid Convolution, Fat Space produces a thick sound like no other reverb does and excels both at real room modelling and unreal spaces alike. With its novel technology, Fat Space is free of reverb artifacts and thus works on a wide range of sounds. Learn more

Fat Space Reverb - frontside
Fat Space Reverb - backside

RM-1 Ring Modulator

The RM-1 is a virtual-analog ring modulator with a unique soft-saturation characteristic. Both an internal oscillator as well as mono and stereo side chains are available as a modulation source. Learn more

RM-1 Ring Modulator - frontside
RM-1 Ring Modulator - backside

AF-4 Analog Filter

The AF-4 is a virtual-analog lowpass filter module, based on the well-known transistor ladder design. New in v1.0.1: Sidechain for Filter FM! Learn more

AF-4 Analog Filter - frontside
AF-4 Analog Filter - backside

DC-2 Dual Chorus

The DC-2 dual chorus offers a warm, sweeping stereo chorus effect based on a two-stage design with well-matched delay times. Learn more

DC-2 Dual Chorus - frontside
DC-2 Dual Chorus - backside

DR-1 Deep Reverb

Inspired by a high-end 1980s outboard reverb, the Synapse Deep Reverb DR-1 delivers a deep, lush sound not found in modern software reverbs. Learn more

DR-1 Deep Reverb - frontside
DR-1 Deep Reverb - backside

AP-12 Analog Phaser

The Synapse AP-12 is a very musical sounding 6/12 stage phaser effect emulating vintage analog hardware. Learn more

AP-12 Analog Phaser - frontside
AP-12 Analog Phaser - backside

VE-3 Vintage Equalizer

The Synapse Vintage EQ-3 is a precise model of a 3-band analog tone stack, as found in late 50s guitar amplifiers. The unique sound of these devices is due to the coupled, passive circuits employed. Learn more

VE-3 Vintage Equalizer - frontside
VE-3 Vintage Equalizer - backside

Ninety Vintage Phaser

Synapse Ninety is a software emulation of a legendary 1970s phaser. Learn more

Ninety Vintage Phaser - frontside
Ninety Vintage Phaser - backside

GQ-7 Graphic Equalizer

The Synapse GQ-7 rack extension is designed as a professional mixing and mastering equalizer, offering five bands with high-quality parametric and shelving EQs, plus two additional low- and high cut filters. The GQ-7 is suitable for a broad spectrum of tasks - whether you need an equalizer to mix instrument tracks, remove problem frequencies in your master with surgical precision, or get rid of the mic rumble in recordings, the GQ-7 does it all, while delivering superior results. Learn more

GQ-7 Graphic Equalizer - frontside
GQ-7 Graphic Equalizer - backside

About Synapse Audio

Synapse Audio has created software for professional music producers since 2000. Our focus is top-notch sound quality, as well as usability. Being musicians ourselves, we like to use tools that help us get our ideas realized quickly, without being slowed down by convoluted workflows.

Our products

DUNE 3 - Virtual Analog
Obsession - Analog Modeling
Obsession Cinemagic
World of Sequences
The Legend HZ - Analog Modeling
The Legend Modern Analog
World of Cinematic 2
Downtempo Metropolis
Premium EDM Vol. 3
World of Ambient Vol. 2
World of Ambient
Big Room
World of Cinematic
Premium Trance
Premium EDM Vol. 2
Premium EDM Vol. 1
Hydra - Multimodel FM synth

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