Internal Diffraction in a curved loudspeaker cabinet

                                                              

A Corner Reflector is a Retroreflector consisting of three mutually perpendicular, intersecting flat surfaces, which reflects, in this case, SoundWaves back directly towards the source- (loudspeaker driver) , but shifted... in Time and Direction. ALL Box-Shaped loudspeaker cabinets have Eight (8) Interior Corner Reflectors driving soundwaves back into the drivers !