To boil down the meaning of a lobe to the starting point (hmmm sounds a bit like a dinner recipe), it is simply a bump or hole in the amplitude response at some frequency area. Normally it is referred to in terms of room interaction with the frequency response at some particular place in the room. If it existed in the on axis response of the speaker in an anechoic environment then this would be a serious problem. If it exists in only one of the off axis measurements then it is unlikely to affect the performance much in an overall sense. These particular single axis lobes represent an area of research where we spend a lot of time, mainly determining their exact effect in the end overall in-room performance.

Ian Colquhoun
President & Chief Engineer