FabFilter Pro-Q 1.0

Unrivalled sound and interface
An equalizer is probably the tool you use most while mixing and mastering, so you need the best of the best! As you can expect from FabFilter, Pro-Q gets you the highest possible sound quality and a gorgeous interface with unrivalled ease of use.
Key Features

Highest possible sound quality
Gorgeous interface with large display for easy and precise editing
Up to 24 EQ bands
Operates either in zero latency mode, or in linear phase mode with adjustable latency
Filter shapes: Bell, High/Low Shelf, High/Low Cut with 6, 12, 24 and 48 dB/oct slopes
Each band can operate on the stereo signals or on the left or right channels independently for per-channel EQ-ing
Mid/side mode where you can EQ the mid and side signals separately
Built-in real-time frequency analyzer with Pre- and Post-EQ modes
Double-click text entry of parameter values
Different display ranges: 6 dB range for mastering use, 12 dB, and 30 dB for mixing
Stereo and mono plug-ins available
MIDI Learn
Undo/redo and A/B comparison
Smart Parameter Interpolation
Sample-accurate automation of all parameters
Extensive help file with interactive help hints
Available in RTAS, VST, VST 3 and AU for Mac OS X and Windows