Just wanted to add a disclaimer still, that I'm basing all these on my experience with the plug-in after testing it for a while. Or you could just load up Saturn 2 and do it there, as it seems more geared to do this sort of thing. So kind of like parallel frequency specific distortion.
FabFilter Saturn offers XLFO, Envelope Generator (EG), Envelope Follower. FabFilter Saturn is available in VST, VST3, AU (Audio Units), AAX Native and. Distortion processing introduces digital aliasing effects, especially when applying a lot of drive.
The High Quality button controls the oversampling of the internal distortion algorithms.
You could even use clean filters in series after the driving filter to remove unwanted frequencies from the saturated signal. From warm tube or tape saturation to the wildest multiband guitar amp effects: FabFilter Saturn delivers Distortion, Saturator, Tube, Tape, Multiband, Amp-Simulator. 28 Off: FabFilter Saturn Saturation Software Plug-In. Key features include 16 different distortion styles, from subtle saturation to heavy. as this would highly affect the actual character of the different styles. I guess if you want to distort just a super specific frequency, the best bet is to use a bandpass filter in that area and drive it heavily – then use the global mix control to blend it with the full-spectrum unsaturated signal. That's how I got best results with it as a saturator. subtle saturation and linear phase processing for mastering, many new distortion styles, and more. The shelf filters seem to be focusing the harmonics more to the area covered by the shelf filter itself, so you could have the first shelf filter with a coloured style as "pre-emphasis" and drive, and then use another filter as "post-emphasis" with a clean algorithm. FabFilter Saturn 2 - Parsons Audio Sound Solutions. FabFilter Saturn 2 is a high-quality distortion/saturation plug-in with a huge range of distortion. Introducing four new Amplifier distortion styles, modeled after famous American and British amps. See price drops for the iPad app FabFilter Saturn 2.
It seems to me, that the bell filter will create harmonics to all frequencies below the set frequency, but not so much above it. Modulation visualization for modulation sources and targets.