HarmoniEQ is a digital equalizer specifically designed to bring "excellent and unconventional equalizing performance requiring little to no effort from the user". Voxengo has called HarmoniEQ a harmonically-enhanced equalizer because the harmonic enhancement it applies to the sound is an inherent element of its overall sonic quality. Its special Boost mode coupled with a high-shelving boost produces a "really stunning harmonically-rich and shiny sound".

HarmoniEQ features a single control surface to control the equalizer curve and offers the user 3 shelving and 4 bell-shaped filters without making HarmoniEQ a hard-to-finetune device. At the same time having 7 equalizer bands in total gives the user a lot of control over spectral details of the program material being processed.

Features:

• 4 bell-shaped filter bands.
• Low-shelf filter band.
• 2 high-shelf filter bands.
• Special Boost mode.
• Special Woofer mode.
• "A-to-B" comparisons.
• Factory presets.
• Mono-to-Stereo, Stereo-to-Stereo processing.
• Any sample rate is supported.
• Internal 64-bit processing.
• Native assembler DSP code.