I am currently being annoyed by my amp. I use exceptionally fat Black Rhodium S300x2 speaker cable and am trying to fit it into the back of my Rotel RB-991, and it doesn't fit. I recently demoed an amp with speakon speaker connectors. I was considering modding my amp, speakers and cables to accept these connecters, which should hopefully fix the problem. Does anyone know how these plugs sound and where you can get some?