Rack Extensions by Synapse Audio

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


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

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 2 - The Unison Monster
DUNE 2 Premium EDM Vol. 1
DUNE 2 Premium EDM Vol. 2
DUNE - Ultimate VA synthesizer
Hydra - Multimodel FM synth
EKS Pro - Kick Drum synthesizer

Need more help?

Read our FAQ for more information or visit the Forum, where members of our staff are always ready to help.