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The 255C-RT is a two-way in-wall center channel from Polk's Vanishing RT line, built to sit horizontally behind a flush white grille. It pairs two 5.25-inch mineral-composite polypropylene woofers with a 1-inch silk-polymer dome tweeter, and Polk's PowerPort bass venting helps it reach lower than a typical shallow in-wall. At 3.875 inches deep and 6.6 pounds it fits most standard stud bays, and 90 dB sensitivity with an 8-ohm load makes it easy to drive from an AV receiver. It suits anyone building a discreet home theater where the center speaker must match the look of in-wall left and right speakers.
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Owners of Polk's Vanishing RT in-walls generally praise the clean look and clear dialogue from the center channel, and note it integrates well with the rest of the line. Some mention that bass and overall body depend on the wall cavity and that installation takes planning.
The Polk Audio Vanishing RT Series 255C-RT is a two-way in-wall center channel speaker. A white sheer grille is included.
It has two 5.25-inch mid/woofers with Dynamic Balance mineral composite polypropylene cones and rubber surrounds. A 1-inch Dynamic Balance silk polymer composite dome tweeter handles the highs. The enclosure is PowerPort bass vented.
Connections are made through a pair of gold-plated push connectors. A mounting template for the 255C and the Vanishing Series manual come with it.







