FabFilter Pro-Q 4

Equalizer Plug-in

• Professional equalizer with top-tier audio quality for mixing and mastering.
• Up to 24 EQ bands with Zero Latency, Natural Phase, and Linear Phase modes.
• New Spectral Dynamics technology for extremely precise control of problematic frequencies.
• Advanced Dynamic EQ with adjustable Attack, Release, and Side-Chain settings, plus enhanced processing.
• EQ Sketch for quickly drawing the desired equalization curve.
• Instance List to manage all Pro-Q 4 instances from a single interface.
• Full support for surround formats up to Dolby Atmos 9.1.6.
• Compatible with VST, VST3, AU, CLAP, AAX, and AudioSuite for macOS and Windows.

FabFilter Pro-Q 4 represents the latest evolution of one of the most highly regarded software equalizers in the world of professional audio production. Designed for mixing, mastering, post-production, and sound design, it offers impeccable sound quality combined with an intuitive interface that allows you to work with extreme speed and precision.

Professional Equalizer for Mixing and Mastering

Pro-Q 4 provides all the tools required by audio professionals: Zero Latency processing, Natural Phase and Linear Phase modes, up to 24 fully configurable equalization bands, and an extremely advanced spectrum analysis system. Each band can be operated in Stereo, Mid/Side, or Left/Right mode, offering maximum control during every stage of production.

New features in FabFilter Pro-Q 4

Spectral Dynamics

The new Spectral Dynamics mode acts exclusively on frequencies that exceed a certain threshold, naturally correcting resonances and problematic frequencies without unnecessarily altering the rest of the sound spectrum. The result is a more transparent and effective processing compared to traditional Dynamic EQs.

EQ Sketch

With EQ Sketch, you can directly draw the desired equalization curve with a simple mouse gesture. This feature is ideal for quickly establishing a foundation during the initial stages of mixing.

Instance List

The new Instance List lets you view and control all Pro-Q 4 instances in your session directly from a single window, greatly speeding up your workflow and simplifying the comparison of different EQ settings.

Even More Advanced Dynamic EQ

Pro-Q 4’s Dynamic EQ introduces dedicated Attack and Release controls, optional side-chain filtering, and a completely reworked algorithm that ensures a more natural response and less distortion. Every Bell or Shelf band can be made dynamic while maintaining FabFilter’s signature sound quality.

Fast Workflow and Maximum Precision

The GPU-accelerated graphical interface makes work extremely smooth, even on complex projects. Features such as Spectrum Grab, Auto Gain, Collision Detection, Intelligent Solo, and the new Piano Display allow you to quickly identify frequencies that need correction and make adjustments with absolute precision.

Full-Screen mode, the ability to copy and paste EQ bands between different instances, and intuitive parameter control make Pro-Q 4 one of the most efficient tools available for professional mixing.

Dolby Atmos and Immersive Audio Support

FabFilter Pro-Q 4 is fully compatible with modern immersive workflows thanks to support for major surround formats up to Dolby Atmos 9.1.6. The interface automatically adapts to the configuration in use, offering precise control over individual channels and the spatial distribution of processing.

Why Choose FabFilter Pro-Q 4

Thanks to its excellent sound quality, new Spectral Dynamics and EQ Sketch technologies, and a highly optimized workflow, FabFilter Pro-Q 4 is one of the most comprehensive and versatile equalization plug-ins available today. It is the ideal solution for producers, sound engineers, mastering engineers, and sound designers who want to achieve professional results in any audio production context.

Technical Specifications

• Professional equalizer plug-in for mixing, mastering, and post-production.
• Up to 24 EQ bands.
• Zero Latency, Natural Phase, and Linear Phase modes.
• Dynamic EQ with Attack, Release, Side-Chain, and external trigger.
• New Spectral Dynamics technology.
• EQ Sketch for quickly creating EQ curves.
• Instance List for centralized control of instances.
• EQ Match for automatic spectrum comparison.
• Built-in analyzer with Pre, Post, and External views.
• Mid/Side and Left/Right support for each band.
• Surround support up to Dolby Atmos 9.1.6.
• Character Gentle and Warm modes for adding analog saturation.
• Piano Display for adjusting frequencies using musical notes.
• Bell, Shelf, Cut, Notch, Band Pass, Tilt, Flat Tilt, and All Pass filters.
• Adjustable slopes up to 96 dB/Oct and Brickwall mode.
• Resizable interface with Full Screen mode.
• GPU-accelerated graphics.
• Compatible with macOS 10.13 or later (Apple Silicon and Intel).
• Compatible with Windows 7, 8, 10, and 11.
• Supported formats: VST2, VST3, Audio Units, CLAP, AAX Native, and AudioSuite.