ElectricPhase
Fractal Fanatic
Only passive here. If you can think of a better use for those bytes, please go for it.
Jay Mitchell said:"Passive" here. Since it became the default, I haven't used "active" a single time. Because presence controls on a physical tube amp are in the negative feedback loop, they are, technically speaking, active tone-shaping devices. Presumably the "passive" mode models this real-world operation.