Polk LSI-7 Brochure
LSi Series
loudspeakers
polk
nology
LSi Series Ultra High Performance Loudspeakers
deliver the tonal accuracy, spacious imaging
and precise detail demanded by serious listeners.
e and speaker stands cour
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tesy of SanusSystems
®
.
tech
LSi Series: Loudspeakers For Serious Listeners
LSi25
Side-firing 10" Powered Subwoofers in each mirroredarray enclosure make the LS
capable of filling large rooms with deep, high definition
bass and dynamic, detailed sound. If you crave the tonal
, detail and three-dimensional imaging of a small
accuracy
monitor speaker, and the dynamic range and bass impact
of a floorstanding speaker, you owe it to your ears to hear
i25. Rediscover your love of music!
the LS
Designed for high definition formats such as
SACD and DVD-Audio.
Built-in 10" Powered Subwoofer for true
full-range performance.
Two 5 1/4" drivers with Aerated Polypropylene
Cones for wide response and low distortion.
Ultra high resolution Ring Radiator Tweeters
for superior detail and transparency.
Floorstanding Speaker With Built-In Powered Subwoofer
150W Continuous A
49 3/4" H x 8 5/8" W x 17" D
(126.36cm H x 21.91cm W x 43.18cm D)
Overall Fr
i25 available in 110 volt only.
LS
See specifications for mor
Cherry Ebony
verage Output Per Channel
equency Response 20Hz - 27kHz.
i25 a full range loudspeaker
e detailed product information.
LSi15
Make the remarkable LSi15 the heart and soul of your
high performance stereo or multi-channel sound system.
It features all the extraordinary technologies found in the
i25 model, in a slightly smaller enclosure with an 8"
LS
non-powered side-firing woofer
Mirror-imaged pairs for tightly focused highs
and true three-dimensional imaging.
8" woofer for full-range performance from all sources.
wo 5 1/4" drivers with Aerated Polypropylene Cones
T
for wide response and low distortion.
Ultra high resolution Ring Radiator Tweeters
for superior detail and transparency.
45 1/2" H x 8 5/8" W x 13" D
(115.57cm H x 21.91cm W x 33.02cm D)
equency Response 22Hz - 27kHz.
Overall Fr
See specifications for more detailed product information.
Cherry Ebony
.
Golden Ear,
The Absolute
Sound, 2002
polk
polk
tech
tech
nology
nology
Cabinet resonance can ruin the sound of an otherwise well-designed speaker. You don’t want to hear your speaker cabinets humming along with the
music (they don’t even know the words), you want to hear the uncolored sound launched by the drivers and tweeters. We take special pains to make
e that Polk speaker cabinets ar
sur
of the cheaper and mor
such as asymmetric braces and resonance-damping side panels (for 1 1/2" total cabinet thickness). See more about Anti-Resonant Enclosure at
www.polkaudio.com/catalog/technology/.
2 Polk Audio LSi Series
e r
e r
esonant par
esonance-fr
ee. All wood cabinet Polk Audio loudspeakers ar
d used by many competitive speaker brands. LSi models feature additional anti-resonance strategies
ticle boar
ucted of costly low-resonance MDF instead
e constr
LSi Honors
I am a little stunned by the Polk
“
LSi15…outstanding accuracy,
detail and nuance…”
The Absolute Sound,
April/May 2002
LSi25
Polk Audio LSi Series Loudspeakers feature ultra stiff, well damped, surprisingly lightweight Aerated Polypropylene Cones. They’re 20% lighter than
conventional poly and 35% lighter than aluminum cones. Dynamic Balance composite materials tune out driver r
damping without adding mass. These cones deliver spectacular midrange clarity
Cones at www.polkaudio.com/catalog/technology/.
, punchy bass and high ef
LSi15
esonance, and foamed air pockets add
e about Aerated Polypropylene
. See mor
ficiency
LSi Series
loudspeakers
www.PolkAudio.com / 800.377.7655 (USA & Canada) / 410.358.3600 (Worldwide) 3
Scanning electr
image of Aerated Poly Cone
showing air pockets.
on microscope
LSi Series: Loudspeakers For Serious Listeners
[Polk has] hit the bull’s-eye with the LSi9.Not
“
only is it an exceedingly refined,first-class
performer,it has specific sonic qualities
that make it stand out in its price class.”
SoundStage!.com,
April 2002
LSi9
, usually found only in speakers costing thousands more than Polk speakers, gives the LSi Series its incredi-
The Ring Radiator T
ble accuracy and astonishing detail, to reveal the nuances of your favorite CDs, high definition discs and LPs. The ultra-light woven
ring radiator diaphragm is supported at two hinge points (A & B) and is driven by a centrally positioned voice coil (C). With a higher
ratio of suppor
emarkable tweeter delivers accurate high fr
r
www.polkaudio.com/catalog/technology/.
4 Polk Audio LSi Series
weeter
ted material than conventional tweeters, ther
equencies with pr
mance-robbing resonance to develop. This
s less oppor
e’
ecise detail and wide dispersion. See more about The Ring Radiator at
tunity for per
for
LSi7
B
A
C
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