What does the bottom pot for the Auxes 7-12 control?

The bottom pot for the Auxes 7-12 is responsible for controlling the pan. Pan control adjusts the stereo placement of the signal, allowing the user to place the audio in the left-right sound field. This is crucial for creating a balanced mix and helps in spatializing sound in a live or recorded setting. By adjusting the panning, audio engineers can create a more immersive experience for listeners, making it an essential tool in mixing and routing signals within a system.

The other options are not correct as they refer to different aspects of audio control: volume dictates the loudness level of the signal, gain adjusts the input level of the audio signal, and balance typically relates to the relative levels of different audio channels or sources in a stereo signal. Each of these plays a distinct role that is separate from the panning function.