This question is for use with a desktop PC The exact item in question is linked here Sennheiser GSX 1200 PRO Gaming Audio Amplifier My current setup consists of two Mackie CR3 "multimedia" Speakers now, if I want to utilize headphones at my PC I simply plug the aux jack directly into the Mackie Speakers. Really I'd like to step up my audio game in the easiest manner possible. I'm just wanting to know in an ELI5 manner how exactly/can I even use the Sennheiser Audio Amp? Would this amp connect to my Mackies Speakers? Would this amp connect to my motherboard? What are the connections like etc? Would it make a noticeable difference? Do I need specific headphones that support "7.1 surround sound" Anything you can offer is greatly appreciated. Yes I know this is targeted towards "gamers" and I'm sure there are better options out there. Please feel free to link/suggest anything you'd like! This is the absolute ceiling (price point) though.