The ls i legacy, Polk audio history—a passion for sound – Polk Audio LSiM User Manual
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LSi25, circa 2001
The
LSi
Legacy
First introduced in 2001, LSi represented Polk’s expression 
of a true high-performance loudspeaker that was also 
reasonably priced. LSi was created for the serious listener, 
those who really enjoy music and who enjoy intently listen-
ing to their audio system. LSi delivered a flatter frequency 
response with lower distortion and revealed more detail 
than comparably priced speakers. The series was also 
touted in the press for its tonal accuracy. LSi imaged 
very well, thanks in part to the quality of the tweeter 
and the wide dispersion of the small midbass drivers. 
The series’ performance has made LSi Polk’s flagship 
product for almost a decade. But after a decade, it was 
time to revisit LSi. The result is not so much an evolution 
of the current series as it is a re-engineering of the 
qualities that have made LSi a great series. 
Polk Audio History—A Passion For Sound
Polk Audio was founded in Baltimore in 1972 by Johns 
Hopkins University graduates Matthew Polk and George 
Klopfer. Today, Polk Audio is a leading international manu-
facturer of high quality home and automotive loudspeakers. 
Polk
®
products emphasize superior sound and build qual-
ity, and feature many patented and award-winning innova-
tions. Polk Audio has built a reputation as “The Speaker 
Specialists
®
.” Polk products are sold throughout the
USA, Canada and in over 50 countries around the world. 
Polk Audio’s mission has always been to build high 
quality, great sounding speakers at affordable prices. 
For the people of Polk Audio, building speakers 
is not just a job; it’s a passion.
SRT Series, circa 1995
