This product is a vintage Polk model and is not available for sale, but it may still be available in some stores as a closeout or used product. The following text is taken from the original sales brochure for this product and does not reflect current availability. If you happen to have any question or concerns about this product, or any other Polk Audio product, feel free to contact our Customer Service Department at 1-800-377-7655 Monday - Friday, 9am - 5:30pm EST


Two-way Bookshelf Loudspeaker

Available Finishes:

Real Wood. Real High Performance.

Polk Audio designs and manufactures speaker cabinets to exacting audiophile specifications. These RTi Series Bookshelf Loudspeakers are enclosed in more warm and inviting real wood than ever before. Given the choice between vinyl and real wood, who wouldn't choose real wood?

The RTi28 is the successor to the famed RT25i, winner of Stereophile Magazine's 2001 Budget Component of the Year Award. The RTi28 carries on the tradition of sonic excellence and unsurpassed value that brought Stereophile to write: "It [the Polk Audio RT25i] is far superior to any speaker I've heard for less than $500/pair, and has become my favorite speaker for under $1000/pair... I've never been more impressed by an inexpensive loudspeaker." Stereophile, September 2001

The RTi28 features:

  • Real wood cabinets, including real wood fronts and backs, finished in Cherry or Black Oak veneers, for about the price of vinyl.
  • Reformulated poly-composite Dynamic Balance drivers with butyl rubber surrounds for durability and smooth wide range response.
  • 1" silk/polymer composite dome tweeters for clear, detailed highs.
  • Mylar bypass capacitor in the crossover extend high frquency response and improve detail and transparency.
  • Anti-diffraction grille and narrow baffle with raised driver bezel to minimize grille diffraction for spacious, 3-dimensional imaging.
  • Power Port bass venting for clean, low distortion bass you can really feel.
  • Power Port vent doubles as a convenient, strong, built-in wall mounting bracket for easy, safe placement.
  • Acoustic Resonance Control (ARC Port) technology for more natural midrange reproduction.
  • Magnetic shielding for safe placement near video sources.
  • Gold-plated 5-way binding post inputs (with wide holes for large-gauge bare wire connections) for the most secure connections and the most versatile wiring applications.

Classic and classy, the RTi28 Bookshelf Loudspeakers are built to furniture-grade design standards for the decor- and performance-conscious audiophile. Real wood, and superior performance, at vinyl prices -- a great Polk Audio tradition continues.

Driver Complement

Diameter1" (2.54cm) 
TypeDynamic Balance® silk/polymer composite dome, shielded 
Mid / Woofer
Diameter5 1/4" (13.34cm) 
TypeDynamic Balance® driver, shielded 


Total Frequency Response49Hz-27kHz 
Upper -3dB Limit26 kHz
Lower -3dB Limit59 Hz
Nominal Impedance8 ohms
Efficiency89 dB
Recommended Amplifier Power20-125 watts per channel
Inputs5-way binding posts 

Amplifier Specs

Amplifier Type


Cabinet Dimensions
Height12" (30.48cm) 
Width7 3/8" (18.73cm) 
Depth9 3/4" (24.77cm) 
Mounting OptionsWall mount with built-in keyhole slots or use optional Omnimount articulating bracket 
Product Weight (each)14.00 pounds


Unit of Measureeach 
Total Shipping Weight30.00 pounds
Recommended Accessories
  • Sanus Natural Foundation 30" speaker stands (for front channel use) or 36" for surround speaker use.
  • OmniMount articulating wall-mount bracket
  • AVIA Home Theater Set-up DVD


    Speaker WarrantyLimited, 5 years parts and labor 

    Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.

    RTi28 Media

    RTi28 Literature

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    RTi28 Accessories