Cambridge SoundWorks S100 MultiPole Surround Speakers User Manual
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About MultiPole Technology
The MultiPole capability of your S100 speakers lets
you enjoy different types of surround programs at their
best. The descriptions that follow assume you will
position your surround speakers to the left and right of
the listening area and not directly behind it.
Dipole Mode:
This mode provides everyone in the
listening space with enveloping surround. Most sound
is projected sideways (to the front and rear of the
room), while little is directed at the listeners (see
Dipole in the
Multipole Modes
diagram). As a result,
the sound is well mixed with room reflections, following
longer paths. In Dipole mode, a listener can be closer
to one surround speaker than the other and still hear
both surround speakers. This characteristic makes it
ideal for smaller rooms, where a listener may be closer
to one surround speaker than the other.
Dipole mode is ideal for use with synthesized surround
decoding modes; the choices on your decoder
labeled “Hall,” “Theater,” “Church,” or similar names.
Also, use it for Dolby Surround programs (the prede-
cessor to Dolby Digital and the format supported by
stereo TV programs with surround encoding). Dolby
Surround has a monaural surround channel which is
split between the two surround speakers. Dipole
mode’s dispersion pattern prevents this channel from
“collapsing” towards the closer surround speaker.
Bipole Mode:
This mode “fills in the middle”
compared to Dipole mode. Each surround speaker
projects approximately equal amounts of sound to the
sides and at the listening area (see Bipole in the
Multipole Modes
diagram). This makes it easier to
hear effects occurring between the left and right
surround speakers. Dolby Digital’s separate left and
right rear channels make this possible. The more
Dolby Digital program material you listen to, the more
you will benefit from Bipole mode. In larger listening
spaces, Bipole mode can even rival Dipole mode on
non-Dolby Digital program sources.
MultiPole Modes