Polk Audio Lsi Series - Manual (Page 8)

CASCADE TAPERED ARRAY
Place two drivers near each other and interference between the two drivers creates frequency response errors
(called “comb filtering”) for off-axis listeners; people sitting or standing off to the side of the room won’t hear
the same tonal balance as listeners who are “on-axis” right in the center of the listening area. Polk Audio
multi-driver speakers combat this with “Cascade Tapered Array” crossovers. One driver is “crossed over”
at a lower frequency than the other driver, filtering out the frequencies where the interference will occur (thereby
eliminating interference effects). The Cascade Tapered Driver Arrays in Polk LSiC, LSi9, LSi15 and LSi25 speakers
results in clearer, more detailed sound and uniform tonal balance throughout the room. The sound is consistently
accurate whether the listener is standing or sitting, in-line or off-axis. See more about Cascade Tapered Driver
Array at www.polkaudio.com/catalog/technology/. polk
technology
8 LSi SERIES LOUDSPEAKERS
LSi 15 SYSTEM
Here, the LSi 15 floorstanding loudspeakers are perfectly
matched to the LSi c center channel speaker, LSi
F /X
Bi-directional surround speakers and the Polk Audio PSW1000
Powered Subwoofer. This is a multi-channel music and home
theater system of unusual power and precision for audiophile
systems in mid- to large-sized rooms.
LSi15 SHOWN WITH CHERRY VENEER SIDE PANELS.
EBONY VENEER SIDE PANELS ALSO AVAILABLE.
MULTI-CHANNEL AUDIO SYSTEMS
Front Speaker Center Surround Subwoofer
LSi 25 LSi c LSi F / X or LSi 9 PSW1000*
LSi 15 LSi c LSi F / X or LSi 9 PSW1000
LSi 9 LSi c LSi F / X or LSi 7 PSW1000
LSi 7 LSi c LSi 7 PSW1000
* THE LSi 25 FEATURES BUILT-IN POWERED SUBWOOFERS; AN ADDITIONAL SUBWOOFER
IS OPTIONAL BUT RECOMMENDED FOR LARGER ROOMS
SEE SPECIFICATIONS FOR MORE DETAILED PRODUCT INFORMATION.
LSi 15 SYSTEM