Effect

FabFilter Pro-Q 4

FabFilter · $199

FabFilter Pro-Q 4 is an equalizer plug-in with up to 24 bands, dynamic EQ, spectral dynamics, and linear/natural/zero-latency phase modes.

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Specifications

EQ bands
Up to 24 bands
Filter shapes
Bell, Notch, High/Low Shelf, High/Low Cut, Band Pass, Tilt Shelf, Flat Tilt, All Pass
Filter slope
Up to 96 dB/octave, plus Brickwall option for LP/HP
Processing modes
Zero latency, Natural Phase, Linear Phase, plus Gentle/Warm character modes
Dynamic processing
Dynamic EQ and spectral dynamics with adjustable attack/release
Channel modes
Mid/side and left/right; surround up to Dolby Atmos 9.1.6

Last verified 2026-06-16

FAQ

How much does FabFilter Pro-Q 4 cost?

A full license is $199 USD from the official FabFilter shop. Owners of Pro-Q 3 can log in to their FabFilter account to see discounted upgrade pricing.

What plugin formats and operating systems does it support?

It is available in VST, VST3, Audio Units, CLAP, AAX Native and AudioSuite formats. It runs on Windows (64-bit/32-bit) and macOS 10.13 or higher (64-bit) on Apple Silicon or Intel.

What is new in Pro-Q 4 compared to Pro-Q 3?

Pro-Q 4 adds spectral dynamics, EQ Sketch curve drawing, continuous (free) slope settings, an Instance List for controlling multiple instances, new Character modes, and refined sound quality and interface.

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