TEQ-421
Key Features
- Three fixed-frequency EQ bands tuned for maximum perceptual impact on vocals, guitars, bass, drums, and mixes
- Built-in harmonic coloration modules derived from Voxengo HarmoniEQ for smooth saturation and presence
- Automatic gain compensation keeps output level consistent when boosting or cutting for reliable A/B comparison
- Simple four-knob interface (Lo, Mid, High, Out Gain) for fast tonal decisions without parameter overload
- Resizable GUI with five color themes (Beige, Gray, Blue, Black, Navy) to match your workflow
- Full preset manager with contextual hint messages for quick recall and learning
- Compatible with all major DAWs including Pro Tools, Logic Pro, Ableton Live, FL Studio, REAPER, Cubase, and Studio One
Description
TEQ-421 by Voxengo is a triple-band equalizer plugin built for fast, musical tonal shaping. Its three fixed frequency bands target the low, mid, and high areas that have the most perceptual impact on a mix, letting you sculpt tone with just four knobs.
The EQ bands were tuned against a wide range of source material including vocals, acoustic guitars, bass, drums, and full mixes. Voxengo calibrated the fixed frequencies to the spectral regions that most alter how listeners perceive sound balance.
Built-in harmonic coloration modules derived from Voxengo's paid HarmoniEQ add smooth saturation and a subtle presence effect to the signal. This analog-style warmth makes it especially effective on unprocessed acoustic recordings and master bus applications where gentle tonal enhancement is more useful than surgical precision.
Automatic gain compensation pulls down levels outside boosted bands and vice versa, keeping the overall output consistent. This makes A/B comparisons straightforward and prevents the common trap of mistaking louder for better.
TEQ-421 supports a resizable interface with five color themes, built-in preset management, and contextual hint messages. It runs on both macOS and Windows in VST, VST3, AU, and AAX formats at 64-bit.
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Frequently Asked Questions
How does TEQ-421 compare to Voxengo's paid HarmoniEQ?
TEQ-421 uses harmonic coloration modules derived from HarmoniEQ, but with a simplified three-band fixed-frequency design instead of HarmoniEQ's full 7-band parametric layout. If you need adjustable frequencies and more surgical control, HarmoniEQ is the upgrade path.
Can TEQ-421 be used on the master bus?
Yes, Voxengo designed TEQ-421 for individual tracks, groups, and master bus use. The automatic gain compensation and gentle harmonic coloration make it well suited for broad tonal adjustments on a stereo mix.
What frequencies do the three bands target?
The exact frequencies are fixed at approximately 70 Hz (low shelf), 750 Hz (mid band), and 7 kHz (high band). Voxengo chose these points based on extensive testing across vocals, guitars, bass, drums, and full mixes as the regions that most affect perceived tonal balance.
Does TEQ-421 add color to the signal even with flat EQ settings?
The harmonic coloration modules are tied to the EQ processing. With all bands at zero the signal passes through clean, so you only get the analog-style saturation when actively boosting or cutting.
