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Sobor by Voxengo is a Virtual Effect Audio Plugin for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin, a VST 3 Plugin and an AAX Plugin.
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Lush and Wide Reverb.

Sobor is a stereo reverberation effect AU, AAX, and VST plugin for professional music production applications. This reverb plugin provides a wide palette of reverb spaces while requiring only a minimal effort to obtain useful results. The tails created by this reverb are very dense and produce a well-defined spatialization. Since the reverb uses a kind of "true-stereo" algorithm the panned sounds receive a good stereo field placement. We believe Sobor provides one of the lushest and widest reverb tails available on the market.

Beside producing a shining reverb sound at medium and larger space settings, Sobor is equally great-sounding at ultra-small space settings, going as far as being able to imitate guitar cabinet sound at 100% wet setting. Sobor can even be used to "re-cabinet" a bass-guitar sound yielding very natural results.

The early reflections placement and reverb levels are chosen automatically based on a pre-defined model that depends on the "Size" and "Ambience" parameters. Additionally, the user may specify the "Pre-Delay" and "Stereo width" parameters. Sobor is technically based on Feedback Delay Networks (FDNs) with the Hadamard matrix, and uses self-modulation techniques.

Sobor is great on any sound sources: vocals, synths, drums, mixes. This reverb is a relatively CPU-demanding effect (it takes 7.5% of a single core of i7-7700K processor, at 44100 sample rate), for comfortable use it requires a higher-end processor.


  • "True-stereo" reverberation.
  • Voice streaming reverb plugin.
  • Naturally-sounding reverb.
  • Vocal/Guitar/Synth/Drum reverb.
  • Bass-guitar re-cabineting.

Latest User Reviews

Average user rating of 5.00 from 1 review

Reviewed By Andreya_Autumn [all]
April 16th, 2022
Version reviewed: 3.1 on Mac

I find that the watershed for me with algorithmic reverb is in the early reflections, especially the way those blend with the dry transients, and the way they transition into the tail. There are a lot of good options out there if you're looking for somewhat sparser/less diffuse early reflections. Valhalla Room and Vintage do this really well. Supermassive does that exceedingly well too, if you're not attached to a specific classic sound. Many others do too. That makes such reverbs a difficult sell nowadays, since there's such good options available for cheap or free.

If you're looking for dense and smoothly diffused early reflections, which blend well with the dry sound, things get a little trickier though. I have yet to find a free or cheap option that does this well, though admittedly I've not tried everything out there. That being said: IMO Sobor is one of the best options out there right now if you're looking for those smooth ER's. Of the ones I've tried the only one that does this better is FF Pro-R, which is more than double the price. The new Baby Audio thing does a pretty good job at this too I'd say, though I found it a little splashier than Sobor.

That smooth early characteristic is what makes or breaks "natural" sound in an algorithmic reverb IMO. And while Sobor is somewhat CPU-heavy, that could be weighed against the fact that one might otherwise reach for a convolution reverb for those realistic duties, which could easily cost even more cycles.

I'm very impressed. If this had the on-board frequency shaping of Pro-R I might consider them equally valuable, making this a better deal by far.

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