LSi SERIES LOUDSPEAKERS LOUDSPEAKERS FOR SERIOUS LISTENERS
SERIES CATALOG
2 LSi SERIES LOUDSPEAKERS
LSi 25
Side-firing 10" powered subwoofer in each mirrored array
enclosure make the LSi 25 a full range loudspeaker capable
of filling large rooms with deep, high definition bass and
dynamic, detailed sound. If you crave tonal accuracy, detail
and three-dimensional imaging, and the dynamic range and
bass impact of a floorstanding speaker, you owe it to your
ears to hear the LSi25. Rediscover your love of music!
Designed for high definition formats such as SACD
and DVD Audio.
Built-in 10" powered subwoofer in each speaker
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 AVERAGE OUTPUT PER CHANNEL
OVERALL DIMENSIONS:
49 3/4" H X 8 5/8" W X 17" D
(126.36CM H X 21.91CM W X 43.18CM D)
OVERALL FREQUENCY RESPONSE 20HZ - 27kHZ.
LSi25 AVAILABLE IN 110 VOLT ONLY.
SEE SPECIFICATIONS FOR MORE DETAILED PRODUCT INFORMATION.
LSi 15
Make the remarkable LSi 15 the heart and soul of your high
performance stereo or multi-channel sound system. It features
all the extraordinary technologies found in the LSi25 model,
in a slightly smaller enclosure with an 8" 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.
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.
OVERALL DIMENSIONS:
45 1/2" H X 8 5/8" W X 13" D
(115.57CM H X 21.91CM W X 33.02CM D)
OVERALL FREQUENCY RESPONSE 22HZ - 27kHZ.
SEE SPECIFICATIONS FOR MORE DETAILED PRODUCT INFORMATION.
CHERRY EBONY
CHERRY EBONY
LSi HONORS
Golden Ear,
The Absolute
Sound, 2002
polk
tec hnology
ANTI-RESONANT ENCLOSURE
Cabinet resonance can ruin the sound of an otherwise well-designed speaker. Y ou 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 sure that Polk speaker
cabinets are resonance-free. All wood cabinet Polk Audio loudspeakers are constructed of costly low-resonance
MDF instead of the cheaper and more resonant particle board used by many competitive speaker brands.
LSi models feature additional anti-resonance strategies such as asymmetric braces and resonancedamping side panels (for 1 1/2" total cabinet thickness). See more about Anti-Resonant Enclosure at:
www.polkaudio.com/catalog/technology/.
A
B
“I am a little stunned by the Polk LSi15…
outstanding accuracy, detail and nuance…”
The Absolute Sound,
April/May 2002
WWW.POLKAUDIO.COM 3
LSi25
AERATED POLYPROPYLENE CONE
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 resonance and foamed
air pockets add damping without adding mass. These cones deliver spectacular midrange
clarity, punchy bass and high efficiency. See more about Aerated Polypropylene Cones at
www.polkaudio.com/catalog/technology/.
LSi15
polk
technology
Scanning electron microscope
image of Aerated Poly Cone
showing air pockets.
4 LSi SERIES LOUDSPEAKERS
LSi 9
With the performance characteristics of a premier floorstanding
loudspeaker, the LSi9 will deliver the best bookshelf
performance possible. Astounding detail, excellent accuracy
and dynamic range (with rear-firing PowerPort
®
for deep bass
response), and flawless fit and finish make the LSi 9 the choice
for serious listeners with limited space.
Superior musical accuracy, serious theatrical impact.
Two 5 1/4" Dynamic Balance
®
drivers with Aerated
Polypropylene Cones for wide response & low distortion.
Cascade Tapered Crossover array ensures flat mid-range
response, improved imaging focus, and depth.
Acoustically inert side panels are 1 1/2" thick.
STANDS COURTESY OF SANUS SYSTEMS®(NOT INCLUDED WITH SPEAKER
PURCHASE). AVAILABLE FOR SALE AT SHOP.POLKAUDIO.COM.
OVERALL DIMENSIONS:
14 7/8" H X 8 5/8" W X 15 1/4" D (37.78CM H X 21.91CM W X 38.73CM D)
OVERALL FREQUENCY RESPONSE 38HZ - 27kHZ.
SEE SPECIFICATIONS FOR MORE DETAILED PRODUCT INFORMATION.
CHERRY EBONY
LSi 7
Compact yet powerful, the LSi 7 is engineered to deliver all of
the lifelike detail, imaging and accuracy of the larger speakers
in the LSi Series, sacrificing little to be the perfect speaker for
audiophile systems in smaller rooms.
5 1/4" Dynamic Balance driver with Aerated Polypropylene
Cone for wide response & low distortion.
Cast aluminum driver baskets resist flexing & “ringing”
for ultra-tight bass and coloration-free midrange.
Ring Radiator tweeter for extended frequency response,
superior detail and transparency.
Rear-firing PowerPort for precise deep bass.
STANDS COURTESY OF SANUS SYSTEMS®(NOT INCLUDED WITH SPEAKER
PURCHASE). AVAILABLE FOR SALE AT SHOP.POLKAUDIO.COM.
OVERALL DIMENSIONS:
13 5/8" H X 8 5/8" W X 10 1/4" D (34.61CM H X 21.91CM W X 26.04CM D)
OVERALL FREQUENCY RESPONSE 45HZ - 27kHZ.
SEE SPECIFICATIONS FOR MORE DETAILED PRODUCT INFORMATION.
CHERRY EBONY
polk
tec hnology
RING RADIATOR TWEETER
The Ring Radiator Tweeter , usually found only in speakers costing thousands more than Polk
speakers, gives the LSi Series its incredible 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 supported material than conventional tweeters, there’s less
opportunity for performance-robbing resonance to develop. This remarkable tweeter delivers
accurate high frequencies with precise detail and wide dispersion. See more about The Ring
Radiator at www.polkaudio.com/catalog/technology/.
B
A
C