This also makes it necessary to have a separate amplifier for each speaker. If your sound system is not used for music with a heavy beat or movie sound tracks, then you may not need a Sub-Woofer. Speaker placement is not critical because Woofers are omnidirectional. Mirage - The Midrange speaker reproduces midrange frequencies from about 500 Hz to 6000 Hz. The midrange area contains most of the sound for voices and instruments.
Speaker placement is more critical because mid-range sound is more directional.
Hz to nearly 20,000 Hz. It is responsible for the brilliance in the sound, mostly associated with harmonics. Speaker placement and angle are critical because high frequency sounds are very directional. Full range speakers are practical for low power speakers, but not for high power. Main or House Speaker System - The Main or House Speakers deliver the sound to the audience.