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Astonishing Audio with Polk 90-RT Vanishing RT Speakers

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The Polk 90-RT Vanishing RT Series In Ceiling Speakers bring an unparalleled level of sound quality and clarity to your home audio system. Engineered with Polks exclusive Dynamic Balance® technology, these speakers deliver stunningly realistic sound with deep, tight bass and clear, detailed highs that fill any room with beautiful, immersive sound. Featuring an ultra-slim, nearly invisible design, and a paintable grille that blends seamlessly into your ceiling, the Polk 90-RT Vanishing RT Series In Ceiling Speakers are the perfect addition to your home audio setup. Enjoy the sonic performance of Polk audio quality with the convenience and elegance of a nearly invisible design.

  • Depth:9.28" (23.57 cm)
  • Driver Complement: (1)  3.25" (8.26 cm) d (Round) Dynamic Balance driver with mineral-filled polypropylene cone - Midrange
  • (1)  0.75" (1.91 cm) d (Round) Silk/polymer dome - Tweeter
  • (1)  9" (22.86 cm) d (Round) Dynamic Balance woofer with mineral-filled polypropylene cone - Subwoofer
  • Grille Dimensions:9.63" (24.46 cm) diameter
  • Dimensions:8.19" (20.8 cm) diameter
  • Total Frequency Response:30 Hz → 27,000 Hz
  • Sensitivity (1 watt @ 1 meter):90 dB
  • Lower and Upper -3dB Limits:43 Hz → 25,000 Hz
  • Recommended Amplifier Power Per Channel:10 watts → 125 watts


  • (1) Polk’s Wafer-thin Sheer Grille™ - White, Paintable

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