Polk Audio LSiM702FX
Model #: Polk Audio LSiM702FX
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The LSiM702F/X is the standard by
which surround effects loudspeakers will be judged. This speaker features one 6
1/2-inch mid-woofer for deep low frequency response (in conjunction with a
PowerPort® bass venting system for even deeper bass). Also, one 3
1/4-inch midrange driver of lightweight super cell aerated polypropylene and a
specially aimed 1-inch ring radiator tweeter for superior surround ambience and
detail. A purpose designed semi-circular, wall-mounted surround speaker, the
LSiM702F/X is timbre-matched to the LSiM Series and powerful enough to keep up
in complete LSiM home theater speaker arrays.
Extreme surround performance and
maximum placement flexibility, customized for any room with the wall distance
setting that tailors response to compensate for proximity to corners or nearby
walls, reducing “boominess” while maintaining deep bass effects and
realistic surround ambience.
Polk’s exclusive dynamic sonic engine design optimizes the midrange driver and
the ring radiator tweeter in separate interior chambers for improved transient
response, superior imaging and greater horizontal off-axis response.
Enhanced, reengineered ring radiator tweeters extend top-end response for
incredible details and realistic imaging.
Our innovative overhung voice coil design augments the excursion length for
subwoofer drivers, increasing their power-handling capabilities and enhancing
Extended Linear Motion voice coil design allows lots of movement in a limited
space, eliminating impedance and extending mid- and high-frequency response.
Lightweight, rigid cast aluminum baskets are designed for precision motor
alignment with unobstructed linear movement and ample venting.
Klippel motor optimization uses laser measurement technology to ensure a smooth
excursion path at either end of the volume spectrum for uniform performance at
both low and high volumes.
Polk’s proprietary, patented Dynamic Balance® technology allows
our engineers to design out distortion-causing driver and system resonances, so
you only hear the good sounds.
Our super cell aerated polypropylene cone is the ideal balance of lightweight
stiffness (for more efficient action with less distortion-causing flex) and
superior damping properties.
Durable, computer-modeled, injection-molded butyl rubber surrounds suppress
unwanted cone resonances for a lifetime of reliable sound.
Exclusive, patented Orth crossovers increase lower-order power handling and
smooth the impedance curve, for more efficiency and better high frequency
High quality, heavy duty LSiM enclosure construction features 1.0" MDF on
the sides, 3/4" MDF on the back and bottom and 1 1/4-inch baffles with
substantial internal bracing and separate interior cabinetry for each driver.
These exceptionally robust materials efficiently eliminate cabinet resonances
and standing waves for less distortion and more dynamic transparency.
Beautiful furniture-grade hardwood veneer cabinet finishes, with sleek trim
accents and no visible screws.
Super-thin zero-diffraction grilles lock in place magnetically, and never
obscure your sound.
bass venting is Polk’s patented design for smoothly transitioning the air flow
from the port into your listening area, eliminating turbulence and distortion,
for bigger, more efficient, deep bass impact.
All Polk loudspeakers are timbre-matched within their series, designed with the
same components throughout, to achieve seamless speaker-to-speaker blending
effects in multi-channel systems.
Dual gold-plated, professional-styl, for the most secure connection options.
Dual binding posts allow bi-amp or bi-wire connections, for the ultimate in
customized high performance audio.
All Polk products are made using the best materials and the most advanced
manufacturing techniques. They pass the industry’s most exhaustive quality
tests, including drop testing, extreme signal response and UV & salt
exposure testing. Polk loudspeakers are built to perform for a lifetime.
The LSiM Manual Here: