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Driver Technology
Enclosure Design
Connections
Mounting Options

Driver Technology

Tweeter: The LSiFX uses the same Ring Radiator tweeters as the rest of the LSi Series. This produces a seamless front stage and lifelike surround environment. The ultra-light woven Ring Radiator Diaphragm delivers flat response, precise detail and overall accuracy. A High Frequency Waveguide prevents phase cancellations for smooth, uniform frequency response and wide dispersion. A 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.

Basket: The cast aluminum driver baskets resist flexing and "ringing" for ultra-tight bass and coloration-free midrange.

Timbre-Matched: Timbre-matched with the LSi Series for a seamless, realistic surround sound experience.

Enclosure Design

Enclosure: The speaker has a triangular shape with the speaker faces angled at 45 degrees. Both faces have a tweeter and a woofer and one face also has a switch for selecting Dipole or Bipole operation.

Grille: The open architecture low diffraction grille is used for spacious imaging.

Power Ports: Dual rear-firing Power Ports built into the back plate provide distortion-free bass and surprisingly deep bass response.

Connections

Bi-Amplification: Since this speaker may be bi-amplified, you can improve the sound by using separate amplifiers for the tweeter and woofers. Note that the jumpers connecting the 2 pair of 5-way binding posts must be removed when bi-amplifying.

Mounting Options

Placement: Designed for use only as rear surround speakers.

Wall Mounting: The Power Ports double as convenient wall mounting brackets with key hole slots.

Dipole/Bipole Switch: There is a switch that allows the speaker to be used as a Dipole (out of phase) or Bipole (in phase) speaker. If you're mounting the speakers on the side walls in line with your listening position, the dipole mode will create a diffuse, ambient soundfield. If you're placing them behind your position, the bipole mode fires the drivers in phase to flood your room with surround sound. When used with a Dolby Digital system, the surround speaker setting should be set to small.