HarmonEQ

HarmonEQ is a harmonic exciter EQ that adds musical harmonics and saturation to your audio, without raising peak levels. Unlike traditional EQs that simply boost or cut, HarmonEQ creates perceived loudness and presence through harmonic generation. Built for mixing, mastering, and creative sound design.

Features:

• Six saturation characters per band - MAIN, TUBE, WARM, SOLID, TAPE and CLEAN across three parallel EQ bands (LO, MID, HI), allowing precise tonal shaping per frequency range.
• Dual-channel Stereo/Mid-Side processing - independent control over mono and stereo content for detailed spatial shaping during mixing and mastering.
• Per-band dynamics (Expand, Compress, Transient) - subtle envelope shaping applied post-EQ per frequency band for musical results that complement the harmonic processing.
• De-Emphasis mode - a unique feature that isolates only the added harmonics, removing the clean EQ boost component. Creates a subtle harmonic enhancer effect without changing the tonal balance.
• Oversampling up to 4x - Kaiser-windowed FIR filters for clean, alias-free harmonic generation with automatic latency compensation.
• Professional signal path - parallel band architecture, progressive slope cut filters, Clip 0dB protection, Scoop control, and phase-aligned Mix control.