I've got my speakers hooked up via speaker level connections to the sub. It is a satellite/sub system. I notice there is a difference in sound between Small and Large settings. I turned off all EQs like Dynamic Eq and tone controls. And I kept the crossovers for the receiver and the sub about the same. The Small settings gives a less but somewhat tighter bass. If I switched to Large, the bass sounds more fuller and "boomier". Should there be a difference? According to definition, Large should not send anything to the sub because it turns off bass management (in the receiver). I am confused on which setting to keep it at. Right now, I use Small for movies and Large for music.