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.
- Dynamic Balance
- PowerPort Bass Venting
- PowerPort® technology
- High-quality tweeter performance
- Advanced driver material
Total Pieces |
1 |
Cabinet Warranty |
5 years |
Drivers Warranty |
5 years |
Original Purchaser Only |
Yes |
Carton 1 |
29 lbs (13.15 kg) |
Qty Included |
1 |
Availability |
US |
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 |
Enclosure Type |
Mid-High Array Enclosure Type: Sealed |
Enclosure Type |
Midwoofer Enclosure Type: Dual PowerPort bass venting |
Type |
Orth Crossover Design |
Midrange/Woofer Crossover Frequency |
280 Hz |
Tweeter/Midrange Crossover Frequency |
2500 Hz |
Total Frequency Response |
40 Hz 40,000 Hz |
Nominal Impedance |
8 ohms |
Lower and Upper -3dB Limits |
70 Hz 30,000 Hz |
Recommended Amplifier Power Per Channel |
20 watts 200 watts |
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Type:
Speakers
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Width:
21.1875"
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Height:
7.75"
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Depth:
9.375"
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Energy Star Rated:
No
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