Two loudspeakers are arranged facing each other at some distance. Will a person standing behind one of the loudspeakers clearly hear the sound of the other loudspeaker or the clarity will be seriously damaged because of the ‘collision’ of the two sounds in between?

The loudspeakers have very high intensity in the front direction but not so high in the backward direction. In the given condition let us assume that both loudspeakers are connected to the same source. The person behind the first loudspeaker will hear comparatively very low-intensity sound from it than the other one if the distance between the loudspeakers is small. Even if their sound interferes either constructively or destructively at the ears of the person, he will hear the sound clearly. But if the distance between the loudspeakers is large, the intensity of the other loudspeaker will be comparable to the first one, also due to the path difference both sources will have a phase difference and the clarity of the sound will be seriously affected.


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