Precision EQ plug-in with up to 24 bands, dynamic EQ, and spectral dynamics processing.
VST3supportedAUsupportedAAXsupportedCLAPsupportedWINsupportedMACsupportedLNXnot supported
Checked September 2026
FabFilter Pro-Q 4 is best for surgical and creative equalization with a fast visual workflow; MFreeFXBundle is best for producers wanting a broad free effects suite from one vendor. FabFilter Pro-Q 4 starts at $199 one-time and MFreeFXBundle at Free.
Precision EQ plug-in with up to 24 bands, dynamic EQ, and spectral dynamics processing.

MeldaProduction
Free bundle of 38 effects covering EQ, dynamics, reverb, and distortion.
| FabFilter Pro-Q 4 | MFreeFXBundle | |
|---|---|---|
| Best for | surgical and creative equalization with a fast visual workflow | producers wanting a broad free effects suite from one vendor |
| Starting price | $199 one-time | Free |
| Free version | No | Yes |
| Free trial | Yes | — |
| Formats | VST3, AU, AAX, CLAP | VST3, AU, AAX |
| OS | Windows, macOS | Windows, macOS |
| Key features | Up to 24 EQ bands with multiple filter shapes, Dynamic EQ mode with adjustable attack/release, Spectral dynamics processing, Dolby Atmos support up to 9.1.6, EQ Sketch for freehand curve drawing | 38 plugins including MCompressor, MEqualizer, MCharmVerb, MAnalyzer and MStereoScope for metering, Saturation and modulation effects (MSaturator, MFlanger, MTremolo), Optional paid upgrade unlocks GUI customization and modulators |
| Developer | FabFilter | MeldaProduction |