LSiM704c

The Smaller LSiM Center Channel Speaker

  • Dynamic Balance
  • PowerPort Bass Venting
  • 749.95 Each
  • Free ground shipping on all orders

The All Star Center

Capable of making quite an impact in your home theater system. It produces the kind of wide, deep soundstage and life-sized imaging that puts you in the middle of the action on your TV's screen.

PowerPort® technology

Designed exclusively by Polk, this specially shaped "cone" at the mouth of the bass port directs moving air to eliminate bass-stealing turbulence. No turbulence means no wasted power, which means more efficient bass response.

High-quality tweeter performance

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.

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Tech Specs

Overall

  • Total Pieces
    1

Warranty

  • Cabinet Warranty
    5 years
  • Drivers Warranty
    5 years
  • Original Purchaser Only
    Yes

Shipping Cartons

  • Carton 1
    29 lbs (13.15 kg)

Center Channel Speaker

  • Qty Included
    1
  • Availability
    US
  • Base Height
    7.75" (19.69 cm)
  • Base Width
    21.187" (53.81 cm)
  • Base Depth
    9.375" (23.81 cm)
  • Front Array Driver Enclosure Type
    Sealed
  • Front Array Driver Complement
    • (2)  5.25" (13.34 cm) d (Round) Super Cell Aerated Polypropylene - Mid/Woofer
    • (1)  3.25" (8.26 cm) d (Round) Super Cell Aerated Polypropylene - Midrange
    • (1)  1" (2.54 cm) d (Round) - Tweeter

Crossover

  • Type
    Orth Crossover Design
  • Midbass/Woofer Crossover Frequency
    280 Hz
  • Tweeter/Midrange Crossover Frequency
    2.5 Hz

Audio Quality

  • Total Frequency Response
    40 Hz → 40 kHz
  • Lower and Upper -3dB Limits
    70 Hz → 30 kHz
Reviews
Q & A
Support

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