Frequently Asked Questions
What is Needed to Surround a Listener in Sound Through
a Two Speaker Playback?
A Multichannel source
To replicate the sensation of being surrounded by sound, as opposed to
simply being surrounded by multiple speakers, it is necessary to use a
multichannel audio source. A multichannel source provides discrete, independent
audio information for specific speaker locations. A multichannel audio
system necessitates at least three speakers, however four to six speakers
are needed to take full advantage of the multichannel source. These speakers
are traditionally configured as follows:

Figure 1
For illustration purposes, it is necessary to name each of these speaker
locations found in Figure 1. Starting from the upper left corner, rotating
clockwise:
L = Left Front
C = Center (on top of the TV)
R = Right Front
SR = Surround Right
LFE = Low Frequency Effect or subwoofer (behind couch)
SL = Surround Left
The benefits and limitations of a multichannel source
A multichannel source provides an abundance of audio material, creating
an enhanced listening experience over a traditional, two-channel (L and
R only) stereo playback. However, this enhanced listening experience was
designed for having multiple speakers (see Figure 1) in the playback environment.
Often times, it is not possible to include all of the necessary speakers
for this type of playback experience due to limited physical space, cosmetic
considerations and the cost associated with purchasing at least four additional
speakers.
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