They say:

It was only a matter of time before PInkman and Mr. White combined their talents to create HEISENBERG. Mr. White's pure and clean power co-mingles with Pinkman's rougher and dirtier boost. They run in parallel to keep their individual qualities while providing a wide range of experiences. You can dial in as much or as little of each as you need, and you can further tweak the Pinkman's effect with dedicated Drive and Tone controls.