- Design Goals -
It appears that the average home theater enthusiast feels
somehow pressured to use a low profi le center channel.
Whether it is due to paradigms created by marketing
giants, infl uenced by signifi cant others, or is a matter of
personal taste- I won't guess. Whatever the reason, the
desire for thin center channels is real, so this was an
important consideration in the planning of this project.
From an acoustic standpoint, center channels have one
important and unique acoustic goal: to create a wide,
uniform sound fi eld in the horizontal plane. Why is this
important? Because it solidly anchors the sound in the
center of the viewing screen, regardless of the viewer's
position. With a poor quality center channel (or without
one altogether), it is likely that the only person with any
semblance of a good front soundstage is the one sitting
perfectly centered between the mains. By carefully selecting
the driver geometry and crossover design, I hoped to create
a center channel with wide dispersion that would provide a
great home theater experience from any viewing position.
As with any other design, it is also important that the
speaker is capable of meeting the output and response
demands that will be placed on it. When we combine this
with the other requirements, it is easy to see why center
channel designs can be somewhat tricky. To achieve high
output levels and good bass extension, it takes a signifi cant
amount of cone area, which in turn means large or multiple
drivers, which either increases the profi le or creates poor
off-axis response. This diffi culty may help explain why
mass-market companies often bring to market speakers
that are compromised in one or several of these regards.
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