SAGE SERIES L75i
WISDOMAUDIO.COM
6
By contrast, the
Wisdom Series L75i
speakers radiate sound as a “line source”. The
sound moves into the room as an expanding cylinder, rather than as an expanding
sphere – as though from a vertical line suspended in space.
Line source speakers provide two significant advantages:
•
Ceiling and floor reflections are minimized, resulting in greatly reduced
interference, letting you hear more of the speaker and less of the room.
•
The sound pressure level (SPL) throughout the room is much more evenly
distributed, making it much easier to set the “right” volume, no matter where
the audience is seated.
To achieve this highly desirable line source behavior, it is essential to have a tall and slim
driver. (Simply stacking multiple “cone & dome” high frequency drivers does not create
a proper line source. Instead, it creates a
series
of point sources, which end up
interfering with each other). With Wisdom Audio’s planar magnetic technology, it
becomes possible to have drivers that are
extremely
tall and slim.
Because of this shape, the sound (even at high frequencies) is distributed uniformly
across the width of the room from a driver that “looks” only less than an inch wide
acoustically. However, the sound is launched in a much more directional way vertically.
By minimizing early reflections from the ceiling and the floor, the clarity of the system is
greatly enhanced. This is heard in both tremendous musical detail and in much-
improved dialog intelligibility.
