Innate hearing processes define the realism that can be obtained from reproduced sound. An unspecified system with two loudspeakers in a room places considerable limitations upon the degree of auditory realism that can be obtained. It has been observed that loudspeakers and room must be hidden from the auditory scene that is evoked in the listener’s brain. Requirements upon the polar response and the output volume capability of the loudspeaker will be discussed. Problems and solutions in designing a 3-way, open baffle loudspeaker with piston drivers will be presented. Loudspeakers and listener must be symmetrically placed in the room to minimize the effects of reflections upon the auditory illusion.
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