Legacy V System Owner's Operating Manual page 24

Controlling the Directivity of Sound
While Legacy Audio has continued to improve directivity in loudspeaker designs for more than 2 decades,
speakers with deviant radiation patterns continue to exist in the marketplace. While their high frequency
drivers tend to be cardioid in pattern, lower
frequencies progressively become omni-
directional. This is particularly true of speakers
with small bass drivers. By 500 Hz most
speakers are radiating about 180 degrees,
increasing midrange flutter by adding early
reflections.
The red line indicates ideal uniform directivity
for a very desirable 60 degree horizontal
radiation pattern. The black line is typical of a
three-way speaker design. The Legacy V system
(blue line) employs acoustic directivity control and DSP to reduce lateral room energy and resonances far
lower in the spectrum. The area between the blue and black lines represents the energy reduction as a
function of frequency that the V system affords.
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