"Main Stereo Speakers for a Home Theater"
Most home theater speakers are built with stereo capability.
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The concept the home theater main stereo speaker utilizes the varied 'time of arrival' of sound waves which, because of the binaural sound perception of the ears, results in interaural time differences. The interaural time difference is experienced because of the difference in the time for the sound waves, emanating from a source, to reach a particular ear.
The arrival time is further delayed by the occurrence of reflections of the sound waves which are perceived fraction of seconds later than the direct waves from the source. Additionally the difference in pressure levels also results in interaural level differences of the sounds perceived by the two ears.
These factors allow for differentiating between the different musical instruments by the proper positioning of the microphones while recording, which effect is appropriately reproduced by a stereo home theater speaker. Home theater speaker setup for stereo effect usually requires two channels. However, current home theater speaker sytems produce stereo effect with 5, 6, or 7 channels as well.
Home theater speaker location also plays an important role in eliminating, reducing or otherwise accentuating the standing waves, low spots, and peak or sweet spots in a room. With most rooms having three pairs of parallel walls, the resultant reflections, and constructive or destructive interference caused by room acoustics, music and speaker harmonics, can be ajdusted for optimum performance by proper home theater speaker location.
Performance of the home theater speakers are further enhanced by their location and positioning with options of placing it at angles of 90 or 45 degrees, which when combined the appropriate spacing give or create different impact on hearing and eventual music experience.