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


High output floorstanding loudspeaker

Available Finishes:
Additional Images

Real Wood, Real High Performance


Why settle for vinyl speakers when you can have the warmth and beauty of real wood at the same price, with speakers from the RTi Series. They are wonders of industrial design: real wood, radiant with metallic highlights and racing car lines. Classic Polk performance in a design that speaks to today's high-end home décor. True performance art.


The new standard in all out musical performance, the RTi12 floorstanding loudspeaker is the epitome of "Real Wood, Real High Performance." Its three 7" woofers benefit from having the surface area of a single large woofer with the low-mass and acceleration of small woofers. So RTi12 bass response is tighter, punchier, more accurate; accentuated by the addition of PowerPort Plus Bass Venting Technology.

  • Three 7" woofers have the surface area of a single large woofer with the low-mass and acceleration of small woofers, for a high force-to-mass ratio -- bass response is tighter, punchier, more accurate.
  • Dynamic Balance® polymer composite drivers for smooth wide-range response with low distortion.
  • PowerPort® Plus bass venting for superior clean, low distortion bass that you can really feel.
  • 1" silk dome tweeter with a neodymium magnets for clear, detailed highs; heat-sinked (shown right) for superior heat dissipation, power handling and reliability.
  • Dual, bi-ampable 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.
  • Butyl rubber surrounds for high performance durability
  • Acoustically inert stamped driver baskets.
  • Floating anti-diffraction grilles minimize grille diffraction for spacious, 3-dimensional imaging.
  • Magnetic shielding for safe placement near video sources.
  • Mylar bypass capacitors in the crossovers extend high frequency response and improve detail and transparency.
  • Acoustic Resonance Control (ARC Port) technology for more natural midrange reproduction.

Anti-Resonant Enclosure

Cabinet resonance can ruin the sound of an otherwise well-designed speaker. You don't want to hear your speaker cabinets humming along with the music (they don't even know the words), you want to hear the uncolored sound launched by the drivers and tweeters. We take special pains to make sure that Polk speaker cabinets are resonance-free. All wood cabinet Polk Audio loudspeakers are constructed of costly low-resonance MDF instead of the cheaper and more resonant particle board used by many competitive speaker brands. RTi Series Speakers feature additional anti-resonance strategies, like asymmetric braces.
  • All-MDF construction with massive asymmetric cabinet bracing ensures resonance-free enclosures for accurate sound. (Cutaway view of RTi12 shown left, bracing is similar on other RTi models)
  • Adjustable leveling feet in an outrigger base to provide stability on any type of flooring.
  • Real Wood finishes at vinyl prices.

PowerPort® Plus

For the new RTi10 and RTi12 Floorstanding Loudspeakers, Polk engineers went a step beyond PowerPort Bass Venting with PowerPort® Plus. PowerPort Plus works with two ports (front & rear) and a series of internal "plates" (as opposed to PowerPort's single port) to further reduce air turbulence at the mouth of the bass port, and increase bass efficiency. PPP allows even lower frequency tuning and lower turbulence for less noise and distortion, and more big musical bass, even at lifelike volume levels. This technology delivers performance that vastly exceeds conventionally ported speakers with bass that you truly feel, as well as hear. Learn more about PowerPort Plus.

Driver Complement

Diameter1" (2.54cm) 
TypeSilk/Polymer composite dome 
Diameter5 1/4" (13.34cm) 
TypePolymer Composite Dynamic Balance with rubber surround 
Diameter7" (17.78cm) 
TypePolymer Composite with Rubber surround 


Total Frequency Response18Hz-27kHz 
Upper -3dB Limit26 kHz
Lower -3dB Limit30 Hz
Nominal Impedance8 ohms
Efficiency90 dB
Mid-High Array Crossover1.8kHz, 12dB/octave low and high pass. 120Hz 12dB/octave high pass 
Subwoofer Crossover120Hz, 12dB/octave low pass 
Recommended Amplifier Power50-500 watts per channel
InputsDual (bi-amp) gold plated 5-way binding posts 

Amplifier Specs

Amplifier Type


Cabinet Dimensions
Height50 1/8" (127.32cm) 
Width7 3/4" (19.68cm) 
Depth21" (53.34cm) 
Enclosure Type
Mid-High Array Enclosure TypeSealed 
Subwoofer Enclosure TypePorted via Power Port Plus 


Total Shipping Weight88.00 pounds
Included AccessoriesOutrigger levelling/carpet spikes 


Speaker Warranty5 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.

RTi12 Media

RTi12 Literature

Want to know more? Want to dig just a little deeper to learn about this product? Here's a list of source material that will give more detail, other perspectives, and answer questions you may have.

RTi12 Accessories