Polk LSiM-705 47inch Floorstanding Tower
Model #: Polk LSiM-705 47inch Floorstanding Tower
High Quality Sound
Fills your world with its wide, dynamic soundstage and its capability to effortlessly achieve truly staggering volume levels. The LSiM705 includes a 5 1/4-inch mid-woofer of lightweight super cell aerated polypropylene for smooth blending with its dual 5x7-inch Cassini oval subwoofer radiators enhanced by Polk's patented PowerPortR bass venting.
The ring radiator tweeter features several improvements from the version in the earlier LSi line. A slight reshaping of the tweeter's bullet-shaped phase plug allows it to move even farther out of the baffle, while a redesigned diaphragm has made the tweeter even more efficient.
Advanced driver material
The original LSi speakers featured a light, stiff mineral- filled polypropylene cone that was "puffed up" with injected air to form a honeycomb- like structure. The new super cell aerated polypropylene uses larger "puffed cells" to create a cone material that's thicker yet lighter than the original.
The oval shape helps them produce tight low-frequency music and movie sounds while maintaining a narrow cabinet width. Plus, each woofer has its own PowerPortR - a unique Polk design that positions specially designed "cones" at the mouth of the bass ports to direct moving air to eliminate bass-stealing turbulence.
. Tweeter : 1" (25mm) enhanced Ring Radiator
. Midrange : 3 1/4" super cell aerated polypropylene
. Midbass : 5 1/4" super cell aerated polypropylene
. Woofers : 5" x 7" Cassini oval, super cell aerated polypropylene
. Frequency Response (-3dB limits) : 42 Hz - 30 kHz
. Overall Frequency Response : 22 Hz - 40 kHz
. Steady State Recommended Amp Power : 20 W - 250 W
. 2.83V Sensitivity : 88 dB
. Impedance : compatible w/ 8 Ohm outputs
. Midrange Enclosure Type : sealed
. Midbass Enclosure Type : sealed
. Woofer Enclosure Type : dual PowerPort
. Dimensions W x H x D (greatest overall depth, grille) : 8 5/16" x 47" x 14 3/8" / 21.1 cm x 119.4 cm x 36.5 cm
. Base Dimensions : 9 1/4" x 16 1/4" / 23.5 cm x 41.3 cm
. Product Weight (each) : 78 lbs (35.4 kg)
. Shipping Weight : 86.4 lbs (39.2 kg)