LSi Tweeter

The Ring Radiator Tweeter Reveals The Details

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There are simply no other speakers in this price range with a tweeter as good as this remarkable Ring Radiator Tweeter. The Ring Radiator Tweeter gives the LSi and LCi Series speakers their incredible accuracy and astonishing detail. It reveals all the nuances of your favorite CDs and LPs as well as unlocking the full fidelity potential of today's high definition software formats such as DVD-Audio and SACD. Here's a cool breakout of the Ring Radiator Tweeter's parts to give you a glimpse behind the technology.

1. The Ring Radiator Diaphragm -- Delivers flat response, precise detail and overall accuracy. The ultra-light woven diaphragm is supported at two pivot points (A & B), with the voice coil attached between the two points (C). With very little unsupported material, there's less opportunity for performance-robbing resonance to develop.
2. High Frequency Waveguide prevents phase cancellations for smooth, uniform frequency response and wide dispersion.
3. The copper-clad aluminum voice coil wire combines the low mass and power handling benefits of aluminum with the superior high frequency conductivity of copper. Vent holes in the voice coil former efficiently cool the coil.
4. The copper "Faraday Cap" on the pole piece flattens the impedance curve, lowers distortion, extends and improves high frequency response.
5. Foam and Dacron cavity-fill materials absorbs the diaphragm's back-wave radiation for flatter frequency response. (Note that Dacron material fills the lower rounded cavity and is not pictured for clarity.)
6. The magnetic shielding cup effectively protects nearby video equipment.
7. A tiny, powerful Neodymium magnet makes this tweeter ultra-efficient.
8. An oversized dual-chamber cavity extends low frequency response in the tweeter to well under 1kHz for utterly flat, seamless blending with the speaker's driver.
9. Low Frequency Waveguide promotes laminar airflow between chambers to prevent air turbulence. This feature serves the same function as Power Port for Polk's bass systems.

The Ring Radiator Tweeter, a feature not found in other speakers at the price of Polk's LSi and LCi Series loudspeakers, combined with Polk's resonance-suppressing Aerated Polyproylene driver design, brings you more accurate reproduction of your favorite music and movies. LSi and LCi Series high definition speakers deliver sound that sounds live.

If you're serious about listening, like we are, you owe it to yourself to hear this Ring Radiator Tweeter perform in either the LSi free-standing or LCi in-wall/ceiling speakers.