Polk Audio 90-RT Full-Range Bandpass Dual-Port In-Ceiling Loudspeaker

Polk Audio
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Made in USA

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About Polk Audio 90-RT

The Polk Audio 90-RT Full-Range Bandpass Dual-Port In-Ceiling Loudspeaker delivers big sound, yet vanishes into your room's decor. The 90-RT is perfect for use as stealth mains, rears and side surrounds in a high performance home theater, or for bringing dynamic sound to alternate zones from your main stereo listening room.

Polk Audio 90-RT Features

  • Painted to match your decor, Vanishing Series built-in speakers are virtually indistinguishable from their surroundings
  • Enhanced, reengineered ring radiator tweeters extend top-end response for incredible details and realistic imaging
  • Dual bandpass bass ports are highly efficient in small enclosures and smoothly funnels the angled woofer's low frequencies down around the driver array, eliminating chuffing
  • Easy one-cut, drop-in installation puts built-in audio within reach, with Perfect Fit templates, a precision flange and (available) Pre-Construction Brackets; achieve secure, vibration-free efficiency with a simple turn of the patented Rotating Cam system

Polk Audio 90-RT Specifications

Total Frequency Response
Upper -3dB Limit
25 kHz
Lower -3dB Limit
43 Hz
Nominal Impedance
8 ohms
90 dB
Recommended Amplifier Power
10-125 watts per channel
Gold-plated spring-loaded posts
Mounting Depth (assumes 1/2)
8-7/8" (22.54cm)
Subwoofer Type
Dynamic Balance woofer with mineral-filled polypropylene cone
Midrange Type
Dynamic Balance driver with mineral-filled polypropylene cone
Tweeter Type
Silk/polymer dome
Tweeter: 0.75" / 19.05 mm
Midrange: 3.25" / 82.55 mm
Subwoofer: 9" / 228.6 mm
Overall Depth
9.38" / 238.25 mm
Overall Diameter
9.63" / 244.60 mm
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