Upgrade version: Requires a registered Fabfilter Pro-Q 1-3 licence

• Upgrade from FabFilter Pro-Q 1-3 to FabFilter Pro-Q 4
• High-quality EQ for all applications with up to 24 bands
• Dynamic EQ mode with adjustable attack and release time
• Spectral Dynamic mode for treating problematic and harsh frequency ranges
• Character modes for saturating the signal: Clean, Subtle and Warm
• Instance list allows control of all Pro-Q 4 instances via a single plug-in interface
• EQ Sketch allows you to draw the EQ curve
• Per filter band L/R or M/S mode adjustable
• Available filter characteristics: Bell, low and high shelf, low and high cut, notch, band-pass, tilt-shelf, flat-tilt and all-pass.
• Slope can be set depending on the filter characteristic up to 96 dB/octave
• LP/HP filter with brickwall characteristic
• Spectral visualisation from any other Pro-Q 4 instance, including coverage detection
• Three operating modes: Zero-Latency, Linear-Phase and Natural-Phase
• Spectrum grab function with indication of the most important peaks for quick EQ settings
• EQ Match allows you to match the output spectrum of another Pro-Q 4 instance
• Advanced settings per band with Make Dynamic, Invert Gain, etc.
• Solo function for individual bands
• Fade-in piano roll for musical frequency display
• Side-chain function for dynamic mode
• Spectral dynamic mode and EQ match
• Supports all major surround/immersive audio formats up to 9.1.6 Dolby Atmos