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Superior performance floor-standing tower in Mount Vernon Cherry



  • Dynamic Sonic Engine
  • Dual woofers
  • Accurate dialogue
  • Advanced driver material

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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.


  • Dynamic Sonic Engine
  • Dual woofers
  • Accurate dialogue
  • Advanced driver material
Total Pieces 1
Cabinet Warranty 5 years
Drivers Warranty 5 years
Original Purchaser Only Yes
Shipping Cartons
Carton 1 86.4 lbs (39.19 kg)
---Floor Standing Speaker---
Qty Included 1
Availability US
Height 47" (119.38 cm)
Width without Base 8.31" (21.11 cm)
Depth without Base 14.38" (36.53 cm)
Weight 78 lbs (35.38 kg)
Width with Base 9.25" (23.5 cm)
Depth with Base 16.25" (41.28 cm)
Driver Enclosure Type Sealed
Driver Complement
  • (1) 3.25" (8.26 cm) d (Round) Super Cell Aerated Polypropylene - Mid/Woofer
  • (2) 5" (12.7 cm) d (Round) Super Cell Aerated Polypropylene - Midrange
  • (2) 7" (17.78 cm) h x 5" (12.7 cm) w (Oval) Cassini oval, Super Cell Aerated Polypropylene - Subwoofer
  • (1) 1" (2.54 cm) d (Round) Enhanced Ring Radiator - Tweeter
Enclosure Type Mid-High Array Enclosure Type: Sealed
Enclosure Type Subwoofer Enclosure Type: Dual PowerPort bass venting
Audio Quality
Total Frequency Response 22 Hz → 40,000 Hz
Nominal Impedance 8 ohms
Lower and Upper -3dB Limits 42 Hz → 30,000 Hz
Type Orth Crossover Design
Midrange/Woofer Crossover Frequency 100 Hz
Tweeter/Midrange Crossover Frequency 2800 Hz
A/V Receiver Crossover Settings (40 Hz)
External Amplifier
Recommended Amplifier Power Per Channel 20 watts → 250 watts

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.