Polk Reserve R400C Center / unit



  Reserve R400 Center Channel Speaker Two 6 1?2? Turbine Cones
Minimum Impedance – 4.1? Sensitivity – 89dB
Frequency Response – 48Hz – 39kHz

The R400 offers unrivalled power and clarity from a center channel speaker. The addition of two 6.5″ turbine cone woofers and Polk”s unique X-Port technology means it delivers enormous yet balanced sound, ideal for the ultimate home theater system.


  • Power And Clarity
    As we get older, we learn what better looks like, feels like, tastes like, and even drives like. Inheriting best-in-class technologies from our flagship Legend series of loudspeakers, the Polk Reserve series helps teach you what better sounds like.
  • Crystal Clear Vocals For Home Theater
    The center channel is the most important speaker in any home theater setup. The Reserve R400 uses Polk”s latest flagship transducer array to deliver clear, crisp, intelligible dialogue no matter where you sit.
  • Pinnacle Ring Radiator Tweeter
    The Pinnacle Ring Radiator Tweeter”s distinctive pointed shape guides the dispersion of high frequency sounds around a room. This innovation widens the sweet spot and allows you freedom to enjoy your music and movies wherever you choose to sit.
  • Turbine Cone Woofer
    Our pioneering turbine design delivers a significant increase in cone rigidity without increasing mass. This innovation means the woofer can move with increased accuracy and speed to deliver enhanced sound resolution, enabling you to experience a breathtaking level of detail in your music and movies.
  • X-Port
    Polk”s proprietary X-Port eliminates unwanted noise created as air moves in and out of the speaker cabinet port at high-speeds. This ensures a rich and detailed listening experience with tight distortion-free bass and a clean midrange.
  • Exceptional Cabinetry
    Reserve”s sleek cabinetry hides a world of audio innovation. Cabinets are carefully cross-braced to best eliminate unwanted interior resonances. Rounded exterior corners help disperse sound broadly around the room with minimal diffraction, creating an open sound stage.
  • Hi-Res Certified, Dolby Atmos Enabled & Imax Enhanced
    The Reserve Series sets the benchmark for music and movie audio excellence

    • Hi-Res Audio Certified
      Delivers clear and detailed high-end response up to 40Khz for improved high frequency signals for today”s high-quality audio.
    • Dolby Atmos Enabled
      Listening to Atmos and DTS:X-enabled content on Reserve Series speakers brings you deeper into the story or music every time.
    • IMAX Enhanced Certified
      IMAX Enhanced certification guarantees an unforgettably huge and dynamic home theater experience when enjoying IMAX Enhanced movies, television shows and music.


Tweeter Size (in)1
Tweeter(s)1 x 1″ Ring Radiator
Midrange Size (in)6.5
Woofer Size (in)5.25
Woofer(s)2 x 5.25″ Turbine Cone
Frequency Response48Hz – 39kHz
Enclosure TypeDual Rear ETF Ports
Impedance4.1 Ohms
Speaker TypeCenter Channel Speaker

Approximate Dimensions

Height (in)7.8
Width (in)24.2
Depth (in)13.8

Approximate Weight

Unit Weight (lbs.)32.8
Shipping Weight (lbs.)39.5

Polk Audio


Reserve Series

Product Type

Center Channel

Fill your home with the big, clear sound of Polk speakers and elevate your favorite movies, TV shows, sports games, music, and more
SKU: r400C Category: