First,let me state there is no such think as directional sound to the effect where you can sit in one area and only hear sound in that area and no where else (*unless you have complete sound proofing to studio standards around that area.)
Some speaker manufacturers advertise *directed sound* and imply that the sound only goes where its directed...and elsewhere you hear nothing-this is incorrect unless they have found a way to defeat the laws of psyhics.
For sound to be truly directional it would have to travel in straight lines and sound doesnt behave like that it travels in waves which spread according to the size and amount of speakers.
http://en.wikipedia.org/wiki/Directional_sound
So,,its snake oil I`m afraid..:-)
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