Originally developed for FabFilter One, Simplon's filters were designed from the ground up to be the fattest and smoothest self-oscillating digital filters possible. Simplon's filters sound raw but never cheap or ‘digital’, even at full resonance.

Each filter offers three different filter characteristics that define the unique sound and overdrive of the filter. They range from smooth filters with moderate overdrive to raw, self-oscillating over-the-top madness!

In combination with the response and slope settings, FabFilter Simplon offers up to 27 different filter types.

Tweak the filters with Simplon's large interactive filter display that shows both filter curves and lets you drag them around. You can adjust the filters separately or both at the same time.

And of course, you get all the usual FabFilter goodies: perfectly fine-tuned knobs that work both in vertical and circular drag modes, interactive MIDI Learn, Smart Parameter Interpolation for smooth parameter transitions, great presets, extensive help file with interactive help hints, sample accurate automation for all parameters, AltiVec and SSE optimization, and much more.