A similar application as the Brainworx bx_stereomaker, but a very different approach with a totally different sound!

Crossgrade Offer:
If you own bx_stereomaker or the Schoeps Mono Upmix plugin you can get the other one for just $49! Please just login and you will see your special price.

What is the SCHOEPS Mono Upmix plugin good at?

The SCHOEPS Mono Upmix can generate Stereo and even LCR channels from any mono signal and works great on voices in Post Production, synth in music production, as well as bass, guitars, drum room mics, vocals, etc.

It adaptively extracts the diffuse sound in the mono input signal to create an upmix signal. As the diffuse sound should always be reproduced decorrelated on different stereo channels, the up-mixed signal sounds more natural than the original mono track.

The Mono Upmix is often superior to a reverb as it doesn’t add reverb but uses the present diffuse sound.

Furthermore, it’s possible to control the perceived source distance and panning position by generating early reflections.

The Mono Upmix plugin performs great with mono location sound dialogue as well as spot microphones in a music recording.


  • Upmix mono → Stereo and LCR (2ch or 3ch)
  • Control perceived source distance and panning position
  • Boost diffuse the room/reverb portion of the signal
  • $49 Crossgrade Offer if you already own bx_stereomaker
  • (just login to see your special price)

Audio Examples

Customer Reviews

  • godsend

    by diossyakos
    Very much needed for close miked sources, almost an ambience reverb, but still not that much, waited for something like that for years. Pity , that it behaves so bad in Digital Performer, the DAW… Read More
  • Great plugin

    by Balint
    Extraordinary algorithm that obviously shines in audio post but is fantastic for music production as well. Very realistic in creating subtle spaces for instruments that should stay in the background… Read More
  • Up Stereo

    by Alex Hepting
    Good and fast plugin not just for the bold imaging but for leveling (adds each sound unique space without diving in physical modelling like the use of EQ and reverb). One of the top plugins… Read More
  • A different (and excellent) mono to stereo plugin

    by GPiazza
    One of the best Mono to Stereo plugins I've ever heard. It spreads the signal (in both panorama and depth) in a more natural way than most M > S plugins. It adds a nice sense of space or… Read More
  • Can be more convincing than reverb...

    by CG
    A great “secret weapon” for adding some depth and space to mono sources without necessarily adding more reverb.
    Note that, like other “stereoisers”, extreme settings can mess with… Read More


Supported Plugin Formats
AAX Native, AU, AAX AudioSuite, VST3

Please note that this plugin does not have a VST2 version.

Supported Operating Systems
MacOS 10.9 through 10.14+
Windows 7 through 10

Intel CPU only (minimum 2 GHz recommended)

Intel-compatible CPU with SSE2 instruction set (Pentium 4 compatible or higher; minimum 2 GHz recommended)

Minimum System Requirements
Display resolution: 1440 × 900px or 1280 × 960px or higher
Memory: 2 GB RAM


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Mono Upmix

Schoeps Mono Upmix - Changelog

Version 1.0 (Nov 14, 2018)
- Release version