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Join Date: Dec 2000
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In a commercial movie theater, the three front speakers are usually identical. Large horns blasting through the perforated screen.
The THX standard in pertinent part for HTs is three identical speakers, each with wide horizontal dispersion and narrow vertical dispersion.
Unless the three fronts are identical you will lose image specificity and depth.
Its the illusion of the sound coming from the actors mouth regardless of where the actor is located on the sound stage. Since this is all fake in movies anyway, the illusion depends first on the quality of the sound engineering, then on having the correct speaker set up to let you reproduce it. THIS REQUIRES THREE IDENTICAL FRONT SPEAKERS. The sound engineers when they mastered the film, monitored their work on a three identical speakers set up, usually in a LEDE room environment.
Cliffy In your theater do this and make sure all three front speakers are close to the screen.
In a small HT (one with only a few rows), the vertical dispersion specification is not very important. Further, unless the side walls are adequately treated to ensure that no row hears sound reflexted from the side walls, the wide horizontal dispersio requirement may work against you. The idea is to have all listeners hear only direct sound and to hear it staged correctly regardless of where seated in a row.
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