PSP stereoController2

The correction tool for dual channel stereophonic signals!

PSP stereoController2 is designed to control, adjust, and rescue incorrectly recorded dual channel stereo tracks, or process them for specialized applications or cool sonic tricks.

PSP stereoController2 can be used in various situations:

  • unbalanced stereo image due to level difference between channels, e.g. in dual microphone stereo recordings

  • slight time alignment shift between channels

  • a track’s stereo image is too narrow or too wide for the mix

  • when the center instrument seems to be shifted to one side

  • virtually emulating an instrument’s location in the soundfield via combined level and delay panning

  • one or both channels have reversed polarity, or the channels are swapped

  • decoding a Mid-Side (M-S) encoded track into L/R stereo

  • reducing the stereo width of low frequencies, or making them mono, for proper speaker or subwoofer replay or for reliably cutting vinyl

  • widening stereo width of high frequencies for more ‘airy’ harmonics and spaciousness

  • fine adjustment of stereo imaging during the mastering process

30-day trial for macOS 30-day trial for Windows

  • High quality signal processing algorithms

  • Up to 2 ms of delay - can repair up to ~68 cm / 2 ft of distance mismatch between mics

  • Width expansion up to 400% for narrowly recorded stereo tracks

  • Master gain control up to ±12dB

  • Optional dedicated width and gain controls for Low and/or High frequencies

  • Low and High band gain control up to ±6dB

  • Stability (sides) balance control without affecting the center content localization

  • Center control to adjust the panorama location of the center content

  • Standard balance control of channels

  • M-S decoder

  • Output monitoring and solo capability for Mid and Side signals

  • Channel swap

  • Polarity switches for both channels

  • Correlation meter

  • Balance meter

  • Dedicated sections for Low and High frequency level and width control

  • Parameter filtering for smooth and click-free parameter adjustment

  • Support for sample rates up to 384 kHz

Main plug-in development and algorithms: Mateusz Woźniak

Development assistant: Piotr Dmuchowski

Project Development: Mateusz Woźniak

Additional Development: Piotr Dmuchowski

Plug-in Design and Graphics: Mateusz Woźniak

Platform: Adam Taborowski

Installer: Piotr Dmuchowski

Product Manager: Antoni Ożyński

Documentation: Mateusz Woźniak, Mike Metlay

In order to run PSP stereoController2 in 30-day trial mode or activate it, you need an iLok user ID which you can create for free at, and you need to install the free iLok License Manager application but you don't need any hardware dongle.

You can activate the license in 3 separate locations, each of which can be either a computer or an iLok dongle (2nd generation or above). You can move these licenses at any time using PACE's iLok License Manager software.



  • Windows 7 – Windows 11

  • 64-bit VST3 compatible application


  • Windows 7 – Windows 11

  • 64-bit VST compatible application


  • Windows 7 – Windows 11

  • Pro Tools

All DAWs

  • The latest iLok License Manager application installed 

macOS Intel or macOS Silicon


  • macOS 10.14 – macOS 14 Sonoma

  • 64-bit AudioUnit compatible host application


  • macOS 10.14 – macOS 14 Sonoma

  • 64-bit VST compatible host application


  • macOS 10.14 – macOS 14 Sonoma

  • 64-bit VST3 compatible host application


  • macOS 10.14 – macOS 14 Sonoma

  • Pro Tools

All DAWs

  • Up to date iLok License Manager application installed

VST and VST3 are trademarks and software of Steinberg Media Technologies GmbH. AAX and Pro Tools are trademarks or registered trademarks of Avid Technology, Inc. AudioUnit, OSX and macOS and macOS Silicon are trademarks of Apple Inc. iLok is a trademark of PACE Anti-Piracy, Inc.