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A scheduled delivery is available only Monday - Friday during normal business hours and used for heavy and oversized items (large TVs, large furniture and large appliances). This service includes delivery to the main entrance or garage (but does not include stairs). This service does not include unpacking, plugging in, installation or debris removal.

Note: Scheduled delivery services are available to most of the contiguous United States (available in parts of Alaska and Hawaii). Call 888-228-5800 for more information.
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Discontinued Product

Polk Audio Black High-Performance Floorstanding Loudspeaker - RTi A9

Abt Model: RTIA9BK | UPC Code: 747192113087
This product is no longer available.

Product Details

Polk Audio RTi A9 Black High-Performance Floorstanding Loudspeaker, Model RTIA9BK (Sold As Each)

Don’t be fooled by its great looks. Over three years in development, the RTiA Series represents the essence of the famous Polk sound—inviting, natural, lifelike audio reproduction. Why “natural” instead of “accurate?” Some speakers touted as “accurate” can be antiseptic—interesting at first but become fatiguing. There’s a name for it: listener fatigue. Often it’s subconscious; you’ll find that as weeks pass you are listening to your system less and less. On the other hand, the RTiA’s are natural sounding, engaging and comfortable for long listening sessions yet detailed and revealing. The RTiA9 is a high performance powerhouse and the ultimate manifestation of our RTiA Series. Featuring Dynamic Balance® transducers—three 7-inch bass drivers, two 5 1/4-inch midrange drivers and a 1-inch high frequency dome tweeter—the RTiA9 will fill even the largest room with energy and excitement. With a mind blowing 500 Watt power capacity, these speakers can take everything you can give them and more. Watch high octane action movies in their full grandeur, or delight in an intimate jazz performance.


  • The proprietary curved, 6-layer DAHLI enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. RTiA9 cabinets are designed for clean, accurate sound
  • The two 5 1/4-inch midrange drivers are housed in their own tuned internal enclosures for increased clarity and lifelike detail
  • 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
  • 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
  • PowerPort® Plus bass venting is our patented design for smoothly transitioning the air flow from the port into your listening area, eliminating turbulence and distortion, for bigger, more musical, deep bass impact
  • 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
  • Dual gold-plated, professional-style 5-way binding posts, for the most secure connection options
  • Dual binding posts allow bi-amp or bi-wire connections, for the ultimate in customized high performance audio
  • All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime


Driver Complement

  • Tweeter
    • Quantity: 1
    • Diameter: 1"
    • Type: Dynamic Balance silk polymer composite tweeter
  • Midrange
    • Quantity: 2
    • Diameter: 5-1/4"
    • Type: Dynamic Balance drivers with polymer composite cones and rubber surrounds
  • Subwoofer
    • Quantity: 3
    • Diameter: 7"
    • Type: Dynamic Balance drivers with polymer composite cones and rubber surrounds


  • Total Frequency Response: 18Hz-27kHz
  • Upper -3dB Limit: 26 kHz
  • Lower -3dB Limit: 30 Hz
  • Nominal Impedance: 8 ohm
  • Efficiency: 90 dB
  • Crossover
    • Tweeter/midrange Crossover Frequency: 1.8 kHz
    • Midbass/woofer Corssover Frequency: 120 Hz
    • Recommended Amplifier Power: 50-500 watts per channel
    • Inputs: Dual 5-way binding posts

Approximate Dimensions:

  • Height: 48-5/8"
  • Width: 8-7/8"
  • Depth: 21-3/8"

Approximate Weight:

  • Unit: 75 lbs
  • Shipping: 80 lbs

Warranty Information:

  • Manufacturers Warranty (authorized online retailer): 5 years parts and labor (original purchaser)
Downloadable Resources
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Key Features
Sold As Each/ Three 7 " Woofers/ 1 " Silk Polymer Dome Tweeter/ Magnetic Shielding/ Acoustic Resonance Control/ Mylar Bypass Capacitors/ Neodymium Magnet With Low-Viscosity Ferro-Fluid Cooling/ Dual Bi-Ampable Gold-Plated 5-Way Binding Post/ All-MDF Construction/ Black Finish
More reasons to buy the Polk Audio RTi A9 from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Polk Audio RTi A9 is Brand New.
  • The Polk Audio RTi A9 Ships in a Factory Sealed Box.
ConnectivityBinding Posts
Frequency Response18Hz - 27kHz
Enclosure MaterialMDF
Enclosure TypeBass Reflex (Ported)
Magnetic ShieldingYes
Midrange Size (inches)5.25
Speaker Design3-Way
Speaker TypeFloorstanding
Tweeter Size (inches)1
Woofer Size (inches)7
Height (inches)48.63
Width (inches)8.38
Depth (inches)21.34


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