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XA SERIES FEATURES
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Multielement Expanding Array
Months of study and computer simulation resulted in a sci-
entifically designed five-element array with idealized disper-
sion characteristics (three-element in XA 75
ps
and XA 55
cr
).
The XA’s performance is seamless and invariant within any
likely listening position. Controlled directivity beyond normal
vertical angles reduces room involvement, for a clearer and
more detailed image with either movie or multichannel
music sources.
Integral Powered Subwoofer
An integral subwoofer gives the low-frequency foundation
necessary for music or cinema reproduction (XA Towers).
Inclusion of an amplified subwoofer allows the upper-range
drivers to be optimized for higher sensitivity.
Controls for Subwoofer Optimization
Controls on the dedicated subwoofer amplifier allow
optimization of subwoofer performance to both the room
and program. Parametric Equalization (XA 90
ps
only) allows
correction of room acoustic flaws. Bass level and subwoofer
rolloff shape controls (via remote in the XA 90
ps
, via rear
panel in the XA 75
ps
) allow for adjustment as needed for
program material, room, and taste.
Platform Baffle
This three-layer sandwich isolates the baffle from the cabi-
net to decrease panel resonances and coloration—especially
in the critical midrange. The Platform Baffle consists of
materials of varying density—an extremely dense outer layer
to which the tweeter and bass units are mounted, a
“squishy” neoprene middle layer, and a medium-density
inner layer that attaches to the cabinet.
Radiused-Edge Baffle
The elliptical radius on our baffle edge reduces re-radiation
for a cleaner and smoother response—especially off-axis.
Snell pioneered this technique in the original Type A speaker
system in 1976.
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