This isn’t directly Reaktor related but if you use Reaktor you’ll certainly find uses for it in your effects chain, to add everything from subtle warmth to screeching insanity.
“Single Mault SE is a powerful distortion and tone-shaping plugin by FXpansion. A streamlined version of the Maul 3-band distortion plugin, Single Mault SE features 7 modelled distortion algorithms with additional tone filtering, saturation, soft-limiting and transient-shaping circuits. Single Mault SE also includes a wet/dry mix control and full MIDI Learn functionality. It is provided in VST, AU and RTAS formats. “
Get it here free until July 31st! You have to create an FXPansion account to get a serial and authorize – well worth the effort, I think. Pretty much everything FXpansion releases is worthy of your consideration. I’m a huge fan of their Tremor and Synth Squad plugins.