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Amongst which of the following types of directivities of loudspeakers are frequently employed where sound must be focused in a specific zone?

46. Amongst which of the following types of directivities of loudspeakers are frequently employed where sound must be focused in a specific zone?

1. Unidirectional
2. Omnidirectional
3. Bipolar
4. Horn-loaded

Answer: A) Unidirectional

Explanation:

Unidirectional speakers are frequently employed in circumstances where sound must be focused in a specific zone.