Radically musical creative timbre shaper

For decades, synthesizers’ filters have been made to follow the pitch of a performance to maintain the timbre of the instrument. Frequency selections of audio equalizers, on the other hand, have always remained static. While this has made these tools effective for wide-range tone shaping and correction of resonances, which are tied to the tracking room’s dimensions, their de-correlation from the harmonic structure of the source signal has caused an inability to accurately maintain the overall timbre of the processed instrument. SurferEQ utilizes a proprietary pitch-tracking algorithm to identify the fundamental frequency of a source signal and track its movement across the frequency spectrum as different notes are played. SurferEQ is then able to smoothly shift its processing bands at fixed intervals, relative to the sliding fundamental, in real-time.


  • Groundbreaking pitch-tracking equalizer
  • Original asymmetric, morphing EQ algorithms
  • Innovative Harmonic Filter
  • Side-chain input enabling external pitch detection
  • Spectral Gate—normal and reversed
  • 3-mode MIDI control, including an innovative EQ Instrument mode
  • Zero-latency mode
  • Spectrum analyzer and Spectral Level Meters
  • Undo/Redo
  • 64-bit internal processing

System requirements

Windows Windows 7 and later
Mac Mac OS 10.7.x and later
Pro Tools Pro Tools | First, Pro Tools 10.x and later
Max Sample Rate 192 kHz
Copy Protection Requires iLok


AAX Native

This product is tested by the Seller for support of current versions of the indicated Avid products and operating systems. For compatibility questions related to older systems, please contact the Seller.

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