Blackboard EQ by CalPochi is a 24-band equalizer with per-band dynamics, saturation and a chalk drawing mode, and its crack keygen tail circulates the VST3 and AU builds.
Blackboard EQ at a glance
| Developer | CalPochi |
|---|---|
| Type | Effects / EQ |
| Formats | VST3, AU |
| Operating systems | Windows 10 or later, macOS 10.13 or later |
| Apple Silicon | Native |
| Architecture | 64-bit |
| Price on Plugin Boutique (October 2026) | €78.34 |
What Blackboard EQ does
Cut filters offer slopes from 12 dB/oct to 96 dB/oct, and the Brickwall Linear Phase mode is available for steep cuts. The developer lists Zero Latency and Linear Phase modes that can be switched, with 2x and 4x oversampling and Pre/Post analysers for checking the signal before and after processing.
Each band is assigned to process stereo, left, right, mid or side signal only. Enabling Dyn turns a single band into a dynamic EQ with its own Threshold, Range, Attack and Release controls, and the Sat section adds Drive Character on the selected band. Alt-drag solos a band while searching for a frequency, and right-click on any EQ point adds a text note. FREE Draw mode lets the user draw chalk-style annotations that have no effect on audio, and the drawings stay in the session when switching presets with A/B comparison.
Key features
- Band filter types. Eight filter types, from Low Cut and Low Shelf through Bell, Notch and Band Pass to High Shelf and High Cut, are chosen per band across 24 bands.
- Slopes and phase modes. Cut filters run from 12 dB/oct to 96 dB/oct, and switchable Zero Latency and Linear Phase modes are available alongside a Brickwall Linear Phase mode.
- Dynamic EQ per band. The Dyn setting turns a band into a dynamic EQ with Threshold, Range, Attack and Release controls, which the developer describes as useful for taming harshness or muddiness only when it appears.
- Per-band saturation. The Sat section gives each band Drive Character controls for adding texture or colour to the selected frequency range.
- Routing and analysis. Each band processes stereo, left, right, mid or side signal independently, with Pre/Post analysers and A/B comparison for checking changes.
Blackboard EQ compared with similar plugins
FabFilter Pro-Q 4 is an effects EQ from FabFilter in VST2, AU and AAX formats for Windows and macOS. Equalize from Acon Digital is an effects EQ in VST3, VST2, AU and AAX for Windows and macOS. Blackboard EQ differs by offering VST3 and AU only, with per-band dynamic EQ and saturation.
| Plugin | Developer | Type | Formats | Systems | Price |
|---|---|---|---|---|---|
| Blackboard EQ | CalPochi | EQ | VST3, AU | Windows, macOS | €78.34 |
| FabFilter Pro-Q 4 | FabFilter | EQ | VST2, AU, AAX | Windows, macOS | €167.59 |
| Equalize | Acon Digital | EQ | VST3, VST2, AU, AAX | Windows, macOS | €6.89 (regular €98.18) |
| PSP Tilt-Q | PSP Audioware | EQ | Windows, macOS | €68.43 | |
| Linear Phase EQ | Waves | EQ | VST2, AU, AAX | Windows, macOS | €37.69 (regular €165.41) |
Price and availability
Blackboard EQ was listed on Plugin Boutique in October 2026 at €78.34. Prices change often, so the store page shows the current one.
Blackboard EQ FAQ
Is there a working serial key or keygen for Blackboard EQ?
A working serial and keygen are the strings people type with the name; the developer's formats are VST3 and AU for Windows and macOS.
Does Blackboard EQ run on Apple Silicon Macs?
Yes. Native support for Apple Silicon is listed, with macOS 10.13 as the minimum.
Which formats does Blackboard EQ include?
The plugin is available as VST3 and AU.