The Input Gain Knob makes your sound loud’n’proud with the S950’s unique grit and warm distortion. It’s powerful and will help anything stand out in your mix. The Audio Bandwidth Knob controls the target sample rate and analog-to-digital conversion circuitry with an exquisite, yet remarkably subtle, aliasing effect. The Filter Knob controls the S950’s infamous steep low-pass filter. Use it on separate elements, or on any output bus or master section.