Open Box Electronics For Sale
Open Box Electronics For Sale

Certified Refurbished Polk Audio CSi A4 | Black Center Channel Speaker

  • 1–Inch Silk/Polymer Dome Tweeter
  • Magnetic Shielding
  • Low–Viscosity Ferro–Fluid Cooling
  • Gold–Plated 5–Way Binding Post Inputs
  • High Performance Durability

Regular Price: $249.95

You Save $110 (44%)

Your Price: $139.96

This Item Is Currently Unavailable.

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Polk Audio

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Details & Highlights

Product Highlights

    Love what you see but don’t want to pay full price? You’re in the right place. Save your hard–earned simoleons and purchase Certified Refurbished electronics. Prior to sale, every Certified Refurbished item we offer is factory tested for defects in performance, and verified to properly function under normal conditions. Refurbished electronics are a great way to find "good as new" home theater equipment, Bluetooth speakers, tablets, TVs, etc. that cost much less and last just as long as their brand–new counterparts – like this Polk Audio CSi A4 Black Certified Refurbished Center Channel Speaker. You’ll love the way it looks, and the way your bank account looks. So, save those clams for something else, because we have the best deals in town.

Details from Polk Audio

    CSiA4 – High Performance Center Channel Speaker (Certified Referbished)

    The High Performance Heart of Home Theater: The CSiA4 is a high performance center channel speaker for smaller rooms and challenging placement situations. It features two 5 1/4–inch Dynamic Balance® drivers, one 1–inch Dynamic Balance dome tweeter for spot–on imaging, seamless soundstage and natural sounding voices. With the asymmetric cabinet design, you gain the flexibility to placing the CSiA4 above or below the TV and aim it at your position.

    CSiA4 Features:

    • The proprietary curved, 6–layer DAHLI enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. CSiA4 cabinets are designed for clean, accurate sound.
    • Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
    • Polk's proprietary, patented Dynamic Balance technology allows our engineers to design out distortion–causing driver and system resonances, so you only hear the good sounds.
    • Durable, computer–modeled, injection–molded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
    • The RTiA Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi–driver speakers, which degrades the quality of the audio and collapses the soundstage.
    • Patented Acoustic Resonance Control® (ARC) technology suppresses cabinet resonance that causes distortion to ensure clear and natural sound.
    • Beautiful curved furniture–grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry.
    • Computer–modeled anti–diffraction grilles enhance the good looks while minimizing sonic interference.
    • All Polk loudspeakers are timbre–matched within their series, designed with the same components throughout, to achieve seamless speaker–to–speaker blending effects in multi–channel systems.
    • Gold–plated, professional–style 5–way binding posts, for the most secure connection options.


Features & Specs

Best Seller
Manufacturer's Warranty
    2 Years Parts / 2 Years Labor - Carry In Service
Detailed Specifications
    Driver Complement
  • Midrange 2 – 5–1/4 inch Diameter (13.34cm)
  • Polymer Composite Dynamic Balance with rubber surround
  • Tweeter 1 – 1 inch Diameter (2.54cm)
  • Silk Polymer Dome Tweeter
  • Electrical
  • Overall Frequency Response 55Hz–27kHz
  • Lower –3dB Limit 65Hz
  • Upper –3dB Limit 55Hz
  • Recommended Amplifier Power 20–200 w/channel
  • Efficiency 89 dB
  • Inputs 5–way binding posts
  • Dimensions
  • Cabinet Size 6–7/8 H x 20 W x 8–3/4 D inches (17.46cm H x 50.80cm W x 22.23cm D)
  • Enclosure Type Vented with dual PowerPort & single Arc Port
  • Dimensions (Shipping)
  • Width: 23"
  • Height: 10"
  • Depth: 11.5"
  • Weight: 18 lbs
Product Bullets
  • 1–Inch Silk/Polymer Dome Tweeter
  • Magnetic Shielding
  • Low–Viscosity Ferro–Fluid Cooling
  • Gold–Plated 5–Way Binding Post Inputs
  • High Performance Durability


Included Coverage from Polk Audio: 2 Years Parts / 2 Years Labor - Carry In Service

Category ID: 56 | $139.96