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255c-RT

Vanishing RT Series Two-Way In-Wall Centre Channel Speaker

  • High performance audio from an in-wall centre speaker designed for a flush fit with your wall
  • Silk dome tweeters set in a 15° swivel housing provide direct high frequency control, excellent off-axis imaging and more placement flexibility
  • Innovative features and patented Polk Audio technology in a discrete, easy-to-instal parcel
  • Timbre-matched to the RTiA Series
Manual/Downloads

Centre Stage Audio

The Vanishing Series 255c-RT is the centerpiece of a world-class stealth home theatre. Paintable to match any décor, this in-wall centre channel speaker blends in perfectly with its surroundings. Anchoring all the action without attracting attention, the 255c-RT ensures all you see is screen, and all you hear is dynamic, crystal clear sound.

Sheer-Grille™

The unique, wafer-thin grille is magnetically secured to deliver nearly transparent, ultra-small perfs and dynamic, unimpeded sound.

Power Port®

Patented bass venting design smoothly transitions air flow, eliminating turbulence and distortion, for deeper, more efficient bass impact.

Timbre-Matching

Compatible with the entire Polk Audio RTi Series for seamless blending from speaker to speaker in multi-channel systems.

Reflective Room Compensation

Lower tweeter levels offset reflective surfaces, cutting the level in the exact 4-5kHz band where reflectivity destroys sound quality.

Distance Toggle

Crossover adjustments flatten response bumps caused by nearby walls, reducing “boominess” for more lifelike sound from any position.

Simple Setup

Perfect Fit templates, a precision flange, (available) pre-construction brackets and the patented Rotating Cam system ensure secure, vibration-free installation.

  • Tech Specs
  • Support
Tech Specs

OVERALL

  • Total pieces
    1

Accessories

  • Included Accessories
    (1) Sheer Grille - White
  • Optional Accessories
    (1) PB LCiC - Pre-Construction Bracket - Sold Separate

Despatch Cartons

  • Carton 1
    6.25" (15.88 cm) h x 11.25" (28.58 cm) w x 17" (43.18 cm) d - 9 lbs (4.08 kg)

In-Wall

  • Qty Included
    1
  • Availability
    US   Internationally
  • Orientation
    Horizontal
  • Depth
    3.875" (9.84 cm)
  • Weight
    6.6 lbs (2.99 kg)
  • Driver Enclosure Type
    PowerPort Bass Vented
  • Driver Complement
    (2)  5.25" (13.34 cm) d (Round) Dynamic Balance Mineral Composite Polypropylene Cone with Rubber Surround Mid/Woofer - Mid/Woofer
    (1)  1" (2.54 cm) d (Round) Dynamic Balance Silk Polymer Composite Dome Tweeter - Tweeter
  • Grille Dimensions
    9.31" (23.65 cm) h x 14.81" (37.62 cm) w

In-Wall Mount

  • Available Orientations
    Horizontal
  • Shape
    Rectangle
  • Dimensions
    7.625" (19.37 cm) h x 13.125" (33.34 cm) w
  • Clearnace Required for Mounting Dogs (add to each side of cutout)
    3.375" (8.57 cm)

Audio Quality

  • Total Frequency Response
    30 Hz → 27,000 Hz
  • Nominal Impedance
    8 ohms
  • Sensitivity (1 watt @ 1 metre)
    90 dB
  • Lower and Upper -3dB Limits
    50 Hz → 25,000 Hz

Inputs

  • Audio Inputs
    -
  • Speaker Inputs
    (1) Pair of Push Connectors - Gold-Plated

External Amplifier

  • Recommended Amplifier Power Per Channel
    10 watts → 150 watts

Warranty

  • Lifetime Warranty
    Yes
Support

Product Documentation

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