An acoustic system for cancelling out-of-phase reflected soundwaves of an audio output system is provided. The acoustic system provides an acoustic element operatively associated with a positioning system adapted to selectively and bidirectionally position the acoustic element relative to an acoustic center arc of the audio output system so as to be disposed at or nearest a deepest reflector point of the acoustic center arc, cancelling out-of-phase reflected soundwaves from a wall adjacent to the audio output system.