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Feature

Single real wood floorstanding speaker with all MDF construction and resonance-free enclosures
Equipped with dual 5.25-inch polymer composite cone drivers and three 7-inch polymer composite subwoofers
Features Power Port technology to reduce "chuffing" or "port noise"
Equipped with one 1-inch silk/polymer composite dome tweeter
Features a neodynium magnet, low viscosity ferro-fluid cooling, and a heat sink on the back of the magnet

Description

Polk Audio RTI A9 Black Floor-Standing Speaker - The new RTI A series feature several upgrades. From the incorporation of our latest Dynamic Balance Cone drivers and 1 inch tweeters to an elegant restyling of the cabinets in keeping with the latest styles. The floor-standing models feature "Power Port Plus" an enhancement of Polk's patented Power Port technology. As you would expect from this highly popular line, the performance is classic Polk.