Metric Halo Sonic EQ v4

Equalizer Plugin

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Education proof is submitted to the manufacturer and is accepted at their discretion.

The Basics

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It has 3 types of activations, iLok USB, iLok Machine, and iLok Cloud.

Different brands/products will offer different iLok methods. iLok USB is always an option, but the availability of iLok Cloud and iLok Machine methods is at the discretion of the software developer.

iLok Account

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iLok License Manager

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iLok USB Key

iLok USB

This activation is stored on an iLok 2 or 3 USB key.

It is the best option for portability, if you frequently move between multiple machines, and offline use.

iLok Machine ID

Machine ID

This activation is stored locally on your computer.

While this is a convenient way to work offline, and does not require the additional cost of an iLok USB, there is the risk of a license being lost in the case of a drive failure.

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iLok Cloud

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It requires an active internet connection for the entire time you use the plugin(s).

Sonic EQ is the Original Digital Mastering EQ. Now available for your 64-bit DAW for the first time.

MH Sonic EQ is an modern version of the original Sonic EQ developed by Dr. James A. Moorer for Lucasfilm's SoundDroid project, and then expanded for the Sonic Solutions mastering DAWs in the '90s and early 2000s.

In 2007 Sonic EQ was re-created and enhanced for the Metric Halo-designed Sonic Studio 30x Interfaces.

The Sonic Studio 30x version of Sonic EQ went back to first principals, updating the UI and engine.

MH Sonic EQ today is a 6-band fully parametric equalizer in which every band in the EQ supports 2nd to 8th order filters using an updated, low-noise 64-bit state-space EQ structure with the core Sonic EQ coefficients.

In every generation of Sonic EQ, three primary characteristics have remained consistent:

  • The sound - a full, sweet yet powerful musicality which brings a presence and clarity to anything you pass through it
  • Its precision - with high-order slopes and a high degree of control over filter ripple, both in-band and out, Sonic EQ makes it easy to manage very specific frequency content with minimal effect on surrounding program
  • Its unrivaled versatility

Whether you work in forensic restoration, sound design, high-end mastering, post-production, recording, re-recording, multi-tracking or live sound, the power and simplicity of this EQ will get you the sound you are looking for faster and sounding better than you may be willing to believe.

You will find you can make EQ curves with Sonic EQ that look completely broken, yet still sound perfectly clean and natural.

Sonic EQ also provides a special set of laboratory-grade filters for vinyl (RIAA encode and decode) and early generation digital formats transfer (DC removal and digital de-emphasis).

It is no understatement to say the Sonic EQ has been and still is one of the most highly respected and coveted digital equalizer packages on the planet.

This version of Sonic EQ, originally incorporated exclusively in the hardware DSP of Sonic Studio branded Model 30x audio interfaces is now reborn as an AAX, VST and AU plug-in for Mac and Windows DAW users with a cleaner layout, SpectraFoo spectrum analysis and level metering and an even higher order of musicality, precision and power.


  • World-class Signal Processing and Workflow
  • Used by Grammy-Award winning Engineers on countless hits
  • 6-band Fully Parametric interpolated State-Space EQ
  • All parametric bands support up to 48-dB per octave (8th order) filters
  • One Special band for RIAA Encode or Decode or De-emphasis
  • SpectraFoo spectrum analysis built-in
  • SpectraFoo level metering built-in
  • Scalable gain reduction meters
  • Many presets included
  • Adjustable UI size / Disclosable Graphs
  • MH Preset Manager - Provides cross-platform presets

System Requirements

  • MacOS 10.10 Yosemite and above
  • Windows 7 and above (64-bit only)
  • Intel, AMD, or Apple Silicon CPU
  • Free iLok account and iLok License Manager
  • iLok Machine, iLok Cloud, and iLok USB licensing methods are supported

Plugin Formats

AAX Native, AU, VST2, and VST3

User Manual

Crossgrade Proof

This crossgrade is for owners of a competing DAW. To prove your DAW ownership, we require that you upload proof in the form of an image/PDF.

Types of proof

A copy of your purchase receipt for the original license or the most recent update/upgrade

A screenshot of your product registration

A photo of your package (either CD/DVD or printed manual), with the unique serial number included in the photo.