Polk Audio LSiM 705 Floorstanding Speakers

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Key Features:

  • Dynamic Sonic Engine
  • Dual woofers

Accurate dialogue

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.

Dual woofers

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 PowerPort? ? 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.

Weight 39200 g
Dimensions 211 × 1194 × 36.5 mm
Categories

Home Speakers

Type tower
Tweeter 1″ (25mm) enhanced Ring Radiator
Midrange 3 1/4″ super cell aerated polypropylene
Woofer 5 1/4″ super cell aerated polypropylene
Subwoofers 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