GlassBreaker EQ
Air, weight, presence.The signature Air Band adds a high-shelf boost at five selectable frequencies from 2.5 kHz to 40 kHz. Presence, shimmer, and air using broad high-frequency lift rather than narrow corrective EQ.
Linux + Windows.
VST3 / CLAP.
Offline-first.
Air Band: 2.5K / 5K
Presence and clarity. 2.5K for dense mixes that need cut-through without brittleness. 5K for vocal presence and string brightness.
Air Band: 10K
The default. Broad high-frequency "air" for opening up source material — the recommended starting point for most work.
Air Band: 20K / 40K
Subtle top-end sparkle at 20K. Ultra-high at 40K — only meaningful at 88.2 kHz or higher sample rates.
Measurement-fitted broad-stroke EQ with signature Air Band
The result is five broad, overlapping, boost-leaning bands that interact as a complementary filter bank. Boost one band and its neighbours respond. Set all five to the same value and the overall response stays flat apart from level change: gain without intentional tonal shift. That constraint is built into the topology.
Each band boosts far more than it cuts: +15 to +19 dB at full boost, only −2 to −5 dB at full cut. That asymmetry comes from the measured reference behaviour: these are broad tone-shaping bands, not surgical notch filters.
The signature Air Band sits on top: a high-shelf boost at five selectable frequencies from 2.5 kHz to 40 kHz. At 10K it adds broad high-frequency "air" for vocals, acoustic instruments, and full mixes. At 2.5K it adds presence and forwardness. At 40K it reaches into ultra-high frequencies for sessions running at 88.2 kHz or higher.
Break mode is an alternative voicing engine with its own colour and tilt character, switchable inline. Same five knobs, different response: thicker, more aggressive, and less linear. One toggle, no menu dive.
GlassBreaker EQ reports 0 samples of latency. It uses sample-by-sample IIR processing, with no FFT, no convolution, and no lookahead. Calibration is within ≤0.75 dB across the measured reference states.
GlassBreaker EQ is offline-first. No internet connection required after activation. No telemetry, no phone-home, no account dashboard. One license file, one plugin.
| Control | Function |
|---|---|
| SUB | 21 Hz peak, −5 to +5 · +15.7 dB boost / −2.2 dB cut · Subsonic weight — very broad, use with care |
| 40 | 37 Hz peak, −5 to +5 · +15.9 dB boost / −4.4 dB cut · Kick drum thump, bass foundation |
| 160 | 157 Hz peak, −5 to +5 · +17.1 dB boost / −4.2 dB cut · Low-mid body — can become muddy if pushed |
| 650 | 596 Hz peak, −5 to +5 · +15.9 dB boost / −3.8 dB cut · Midrange body, boxiness control |
| 2.5K | 2.86 kHz peak, −5 to +5 · +18.9 dB boost / −5.2 dB cut · Presence, clarity, vocal cut-through |
| Air Band | 2.5K / 5K / 10K / 20K / 40K — five positions · 10K is the default; 40K only at 88.2 kHz+ |
| Air Gain | 0–10, high-shelf boost amount · Start at 3–4 on 10K for broad high-frequency air |
| Break Mode | Toggle — alternative voicing engine · Thicker, more aggressive, less linear |
| Trim | Output level, ±12 dB · Level-match before bypass comparison |
Clarity Polish. Air Band at 10K–20K with moderate gain for presence and openness. The recommended starting chain.
Low-End Foundation. Boost Sub and 40 Hz before compression to add controlled weight. Keep both below +3 to preserve headroom.
Broad Spectrum Sculpt. Use GlassBreaker EQ for broad tonal lifts, then follow with a narrow surgical EQ for targeted problem cuts.
| OS | Windows 10+ 64-bit / Linux 64-bit (Ubuntu 20.04+, Fedora, etc.) |
| CPU | Any 64-bit x86 |
| Latency | 0 samples — sample-by-sample IIR processing |
| Sample rate | 44.1 kHz – 192 kHz |
| Activation | Email activation — No iLok, No Dongle |
| Formats | CLAP · VST3 · Windows / Linux |
| Version | 1.0.0 |
We measured the target behaviour at dozens of parameter states and fitted our filter bank to reproduce the same frequency response. The result is a parallel IIR filter bank that matches the measured behaviour within 0.75 dB across all calibrated states.