A normal pan knob moves the whole signal. Widen a bass and the floor walks. Park it in the middle and the mids sit there like a stick. Most “stereo” plugins are the same trick with extra makeup; they smear low end to get width.

Aural Diffraction pans by frequency.

You pick a Center. That’s the pivot. Frequencies away from it get steered left or right along a curve you can see. Everything below Lock stays in the middle. The kick and the sub don’t leave the record. The body and the air can.

Optional delay, filter, and binaural sit on that Lock–Top band. They color the image. They don’t replace it.