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Polk Audio 70–RT | In Ceiling (Ea) Speaker w/ 3–Way Driver Array

Polk Audio

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Details & Highlights

Product Highlights

    Flexibility and performance, on a budget.
    Larger diameter means more full-range sound, while practically invisible grilles and a minimal-flange design means almost total invisibility. Packed with innovative technology, but thoughtfully priced, this speaker makes an excellent stealth rear or side surround speaker for home theater installations on a budget. The lightweight Polypropylene Cone and sensitive Silk Dome Tweeter can be angled for superior off-axis performance. Use the Reflective Room Compensation Switch to digitally compensate for "reflective" rooms, giving you extraordinary placement flexibility. The innovative addition of the woofer driver behind the main speaker adds unparalleled depth and dynamics.

Details from Polk Audio

    Full-Range 3-Way Driver Array in the Smallest Diameter
    Innovative new patent-pending design! Ita??s like having a full-range, full-size speaker in a small inset lighting fixture. Adding a woofer for low frequency response frees up the midrange and tweeter for more efficient detail. To do it, we designed a deep well and mounted the Cassini oval woofer above and behind the main driver array. This innovative deep diagonal positioning allows the 70-RT cutout to be just 7" in diameter. This full-range 3-way driver array results in the kind of broad coverage and big performance usually achieved only witha?? bigger speakers!

    Practically invisible grilles and minimal flanges
    New design! No other moderately-priced built-in speaker is this invisible. Vanishing Series Built-In Speakers feature our exclusive wafer-thin Sheer-Grille, a magnetically-secured grille that protrudes only 7mm from its surroundings. Thata??s just this much ----. Painted to match your dA?cor, Vanishing Series Built-In Speakers are virtually indistinguishable from their surroundings. Sheer-Grilles have nearly transparent, ultra-small perfs, and are acoustically inert, for dynamic, unimpeded sound and more uniform coverage, even in larger rooms.

    Timbre-Matched to Polk Audio RTi Speakers
    Match Vanishing RT speakers to RTi Series Loudspeakers. Timbre-matching with the same internal components, and the same lightweight polymer composite cone material, insures utterly seamless blending from speaker to speaker. Use Vanishing Series Speakers to build a system or complete an RTi existing system.

    Dual Bandpass Bass Ports
    Bandpass Ports are the way to go when you want high efficiency in small enclosures. Each Vanishing In-Ceiling Speaker sports dual Bandpass Bass Ports, smoothly funneling the angled woofera??s detailed low-frequencies down around the midrange and tweeter array. The port design eliminates "chuffing," so your small, practically invisible in-ceiling speakers achieve superior full-range blending and broad coverage with surprisingly deep bass.

    Easy Installation Puts the architectural elegance of "invisible" speakers within reach for anyone.
    In existing closed ceilings, use the Perfect Fit Template for one-cut, pop-in simplicity. Achieve secure, vibration-free efficiency with a simple turn of the patented Rotating Cam system. Pre-construction brackets are available for new-build or open-ceiling retro-fitting. Our precision-engineered minimally flanged design lets you get professional results with no additional drywall work.


Features & Specs

Best Seller
Manufacturer's Warranty
    Lifetime Warranty
Detailed Specifications
    Driver Complements
  • Subwoofer: 1 - 7" Diameter (17.78cm) Dynamic Balance Cassini Oval with mineral filled polypropylene diaphragm
  • Midrange: 1 - 2-1/2" Diameter (6.35cm) Dynamic Balance driver with mineral filled polypropylene cone
  • Tweeter: 1 - 3/4" Diameter (1.91cm) Dynamic Balance silk/polymer dome tweeter

  • Electrical
  • Overall Frequency Response: 34Hz-27kHz
  • Lower -3dB Limit: 48Hz
  • Upper -3dB Limit: 25kHz
  • Nominal Impedance: 8 ohms
  • Recommended Amplifier Power: 10-125 w/channel
  • Efficiency: 90 dB
  • Inputs: Gold-plated spring-loaded posts

  • Dimensions
  • Overall Diameter: 8-1/8"(20.64cm)
  • Cut-out Diameter: 6-1/2"(16.51cm)
  • Mounting Depth (assumes 1/2" [12.7mm] wall material): 8" (20.32cm)
  • Overall Depth: 8-1/2" (21.59cm)

  • Shipping/Other
  • Shipping unit: Each
  • Speaker Warranty: Lifetime
Product Bullets


Included Coverage from Polk Audio: Lifetime Warranty

Category ID: 62 | $249.95
249.95 Out of stock