CS1V brings the warmth and depth of an analogue console to your tracks and mixes. Drive increases the level of saturation. Tone adjusts pre-amp character; darker and heavier in the low range anti-clockwise, and progressively brighter high end harmonic boost clockwise. There are two selectable preamp modes: A is darker in character overall, while B has a flatter frequency response. The default "Channel" mode is intended for mono tracks. When inserted on stereo tracks or auxes, the "Buss" setting can be used to add a subtle amount of crosstalk, as in a hardware mixer. Engaging the automatic gain control (AGC) attenuates the output to match the source volume. The Group control allows all instances with the same number to be controlled as a group, making ensemble changes easy.