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Vintage Analogue Emulation Plugin by Synapse Audio
Obsession by Synapse Audio is a Virtual Instrument Audio Plugin for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin, a VST 3 Plugin, an AAX Plugin and a Rack Extension Plugin.
Windows 7 SP1 or higher, 2 GHz quad core CPU
OS X 10.11 or higher, 2 GHz quad core CPU
Copy Protection
Online Activation (Challenge / Response)
My KVR - Groups, Versions, & More
208 KVR members have added Obsession to 111 My KVR groups 264 times.
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+110 in private groups

KVR Rank

Overall: 799   629   783

30-Day: 446; 7-Day: 358; Yesterday: 938

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.

Key features:

  • Two part engine with 8 or 16 voice boards.
  • Single/Dual/Split modes.
  • High-quality effect block with Delay, Reverb and Chorus.
  • Precise control of many sound parameters per voice board.
  • Stepped LFO with freehand drawing for rhythmic sequences.
  • Scalable GUI, Retina-ready.
  • Support for Multidimensional Polyphonic Expression (MPE).
  • 420 patches by leading sound designers.

NKS Approved

Obsession is NKS-ready. Its factory library is automatically integrated into Maschine, Komplete Kontrol etc., with all presets properly tagged and a custom parameter map.


Obsession is available in VST, Audio Unit and AAX formats (all 64-bit), for Windows and OS X.

Factory Patch Demonstration:

{See video at top of page}

Latest User Reviews

Average user rating of 5.00 from 5 reviews

Reviewed By loungedumore [all]
September 20th, 2022
Version reviewed: 1.1.1 on Mac

Hands down the Best OB-Xa emulation out here. Oozes the Oberheim 80's cem sound. This OPX Pro II, and OB-E (and SEM) and you got Oberheim shangri la.

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Reviewed By zombemy [all]
January 29th, 2022
Version reviewed: 69 on Windows

Such an amazing plugin. All of Synapse Audio's Plugins sound abnormally good. They honestly have the best sounding plugins I have heard to date. 25 years of experience, and I say this firmly. Massive X sounds amazing too, but does not capture the work flow Synapse has. Top level audio quality, best filters and effects, best layout and UI, etc ? Well worth the $. I'm amazed Synapse isn't as praised as Xfer. I think Serum is fisherprice easy, thus... all the Ableton wHeRe Da WoBbLe guys use it. Anyway, DUNE 3 AND OBESSION ARE PHENOMENAL!.

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Reviewed By MarulaMusic [all]
September 30th, 2021
Version reviewed: 1 on Windows

I consider Obsession along with U-He's Repro to be the ultimate in virtual analogue synth plugins. It 'plays' and 'feels' like hardware and just feels alive in general. It's simple on the outside, as an analogue synth should be, yet deceptively deep when you start digging around with voice tuning and the step LFO's. It's a fantastically polished and well optimized piece of software with a surprisingly minimal footprint when it comes to taxing your system too.

Highly recommended.

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Reviewed By Kees49 [all]
August 18th, 2020
Version reviewed: v1.03 on Windows

Excellent synth and great emulation.

I really love this synth. Very analog and warm sounding, but also can sound crystal clear.

Low CPU use and very high quality sounding. The presets are not for me, but I started to make sounds myself from scratch and the results are stunning.

Synapse Audio is my number one developer. Great stuff, all of it! Highly recommended.

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Reviewed By jgkunkel [all]
July 4th, 2020
Version reviewed: 1.0 on Windows

Few VSTs really do a great job of emulating their hardware counterparts, but Obsession is almost 100% on point and even goes beyond. Basses are incredibly fat, the leads / pads are very lush, and its also incredibly easy to program. The GUI is really well designed, and the onboard effects are of incredible quality. Will be using this synth for years to come.

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