Tone Control GHZ-0003

Timeless EQ, taken back to the future.

Tone Control

Read the Manual Watch a Demo Download Now Buy Now $95 USD
Available Formats
 Mac OS X ≥ 10.7
Audio Unit 64-Bit (AU64)
AAX 64-Bit
Why Mac Only?

In 1950, an unassuming audio engineer named Peter J. Baxandall won a $25 dollar watch for an innovative treble & bass circuit design. 64 years later, Goodhertz brings you Tone Control.

Designed with the his original circuit in mind, Tone Control refines and expands the classic tone stack, creating a gorgeous, buttery-smooth equalizer with enough versatility for every track in your mix.

  • Baxandall low/high shelves with slope control
  • Variable slope low/high cut filters
  • “Master Air” filter for refinement of the highest treble content
  • “Master Mix” enables quick control of the overall tone shaping

Why make another EQ plugin?

There are lots of EQ plugins out there, and almost every DAW now includes a basic parametric equalizer — so why make another EQ? Because Tone Control enables you to get the tone you’re after, better & faster.

Parametric EQ’s are great when you need em, but they often get in the way when trying to do big-picture tone shaping. That’s what Tone Control was designed for: broad strokes with the flexibility to accomplish most of your equalization in only a couple slider moves. The end result is less unneeded or ineffective equalization and better control of the depth, timbre, and closeness of the mix elements.

Can’t I do that with a passive EQ or a simple shelf?

Not really. Although Tone Control’s shelving filters are inspired by some great passive, analog EQ’s of the past, it also incorporates features and improvements that are thoroughly modern: Master Air & Master Mix controls, variable slope low/high cut filters, and shelving filter shapes that would have never been possible in a passive/analog design.


Master Air

Early on in our analog modelling work for Vulf Compressor, we discovered a tone circuit that perfectly captured the rolled-off high end & pillowy tone of an old vinyl record or tape machine run at a slower speed. It sounded amazing — warm, smooth, and woolly. For fun, we tried flipping the configuration to boost the high end rather than roll it off. The result was even more amazing — modern, airy highs without the slightest bit of harshness. This filter became the basis for the Master Air control and is totally unique to Tone Control.