To be honest, I'm quite lost about the explanation because of the vocabulary that was used. What I understand, correct me if I'm wrong though, is that the volume controller of the headset acts like an equalizer.
I don't know if the theory is the same but I used a program in college, Cyberlink if I'm not mistaken, and I can control the volume of individual desktop speakers. Is this what's happening with my headset and my speakers?