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Polk Audio 255C-RT 2-way In-Wall Center Channel Speaker - The Vanishing Series, Easily Fits into the Wall, High-performance Audio, With Power Port and Paintable Wafer-Thin Sheer GrilleJust like Matthew Polk's signature Reference theater (SRT) system, The components used in the RT Series benefit from dynamic balance, a technology which came out of a joint research project between Polk Audio and Johns Hopkins university. This laser imaging research enabled Polk to view on a microsc...$185.86$349.95
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