Polk Audio 255c-LS Center Speaker (Single)

Rs. 53,000

Polk Audio 255c-LS

A Stealth Center Channel Speaker

With a Vanishing® Series in-wall center channel speaker, you have the centerpiece of a world-class stealth home theater. All you see is screen, and all you hear is crystal clear dialogue, dynamic detail and directional effects. The Vanishing Series center channel speaker anchors the action without attracting attention. It’s the state-of-the-art in today’s most wanted interior design plans.

POLK VS 255C-LS Features:

  • Vanishing Series built-in speakers feature our exclusive wafer-thin Sheer-Grille™, a magnetically-secured grille that protrudes only 7mm from its 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.
  • Painted to match your décor, 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.
  • Reflective surfaces in rooms can make sound brighter and cause image distortion. Engaging the Vanishing reflective room compensation feature (by selecting the low setting) lowers the tweeter level to compensate for reflective surfaces. Vanishing reflective room compensation is a custom audio control that cuts the level only in the 4-5kHz range, exactly where reflectivity destroys sound quality. Outside this narrow 1kHz band, the tweeter retains its detailed and accurate high frequency response, for no loss of realistic musical details.
  • Vanishing Series LS speakers are timbre-matched to POLK VS 255C-LS speakers to insure utterly seamless blending from speaker to speaker in systems that combine traditional and built-in speakers.
  • If positioning limitations demand that your loudspeakers be installed closer than 2 feet from side walls, the proximity of the surface can result in a response bump between 50 and 200Hz. This can create boomy sound. The Vanishing wall distance toggle switch is a custom audio control that adjusts the crossover to flatten response and tune out boominess, without sacrificing deep bass response, for more lifelike sound and more flexible placement.
  • PowerPort® bass venting is Polk’s patented design for smoothly transitioning the air flow from the port into your listening area, eliminating turbulence and distortion, for bigger, more efficient, deep bass impact.
  • 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.

Big sound, no footprint

This in-wall center channel speaker is built to perform. Potent 5-1/4" woofers work with Polk's PowerPort® bass venting technology to deliver punchy lows. A 1" ring-radiator tweeter extends high-frequency response for incredible details and realistic imaging. You'll hear every breath of dialogue and every note of music. All of this from a center channel speaker that's out of sight, in more ways than one.

Sound-shaping controls

A wall distance toggle switch lets you compensate for boominess due to installation near a side wall. You also get a tweeter attenuation switch to help you get balanced sound in rooms with lots of reflective surfaces.

Bring the family

The Polk 255c-LS matches well with Polk's floor-standing and bookshelf speakers, and it can join in harmony with other members of the "Vanishing" LS speaker family. That means you can put together a system mixing custom-installed and more traditional "box" speakers.


Qty Included





7.38" (18.75 cm)


6.86 lbs (3.11 kg)

Driver Enclosure Type

PowerPort Bass Vented

Available Orientations


Mounting Location


Mounting Type

7.63" (19.38 cm) h x 13.13" (33.35 cm) w

Total Frequency Response:

30 Hz → 33,000 Hz

Nominal Impedance

8 ohms

Sensitivity (1 watt @ 1 meter)

91 dB

Lower and Upper -3dB Limits

44 Hz → 29,000 Hz

Speaker Inputs

(1) Pair of Push Connectors - Gold-Plated

Recommended Amplifier Power Per Channel

10 watts → 150 watts

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