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


Slim, high performance floorstanding speaker

Available Finishes:

Beauty and Brawn Come Together

The RM7400T is the perfect complement to today's stylish video displays and home theater systems. Its sculpted anodized Aluminum enclosures look awesome flanking your plasma or flat screen television. High tech materials and features, such as patented PowerPort® bass venting technology and Dynamic Balance composite structure drivers ensure superior performance, delivering rich, full-bodied, big speaker sound from beautiful, compact packages.

Match the RM7400T towers with RM Series centers and surround speakers with a Polk powered subwoofer to custom construct the home theater speaker system of your dreams. (See system suggestions at bottom of this page)

The RM7400T features:

  • Stylishly curved enclosures formed of heavy duty, non-resonant Aluminum; the shape breaks up internal standing wave resonance for pure, lifelike sound.
  • The towers feature Power Port Bass Vents hidden under the grilles to extend and strengthen their lower-midrange performance for a seamless blend with the subwoofer output. Unlike competing slim tower systems, with the RM7400 you'll experience full, rich, natural voices and other important midrange sounds.
  • Dual 4-1/2 inch (11.4 cm) Mineral Filled Polymer Dynamic Balance midrange drivers for clear, distortion-free midrange even at high volume levels.
  • Broad dispersion design allows everyone in the listening area to hear clear, well-balanced sound.
  • 1 inch (25mm) Dynamic Balance Silk/Polymer Composite Dome Tweeter for sweet highs and more lifelike imaging.
  • Connect your RM7400 towers securely and conveniently with their high quality 5-way binding post inputs.
  • RM7400T towers are magnetically shielded for safe placement near your state-of-the-art TV or video monitor with no risk of video distortion.

Polk does 6.1 and 7.1!

Building an EX or ES surround sound system for 6.1 or 7.1 (or more) speakers? You can get RM Series Center Channel and Surround speakers individually to fill out the speaker requirements of more-than-5.1 multi-channel systems. Ask your Polk retailer to special order them for you or call Polk Customer Service 800-377-7655.

Driver Complement

Diameter1" (2.54cm) 
TypeSilk/Polymer composite dome 
Mid / Woofer
Diameter4 1/2" (11.43cm) 
TypePolymer composite cone - shielded 


Total Frequency Response55 - 26kHz 
Upper -3dB Limit25 kHz
Lower -3dB Limit75 Hz
Nominal Impedance8 ohms
Efficiency89 dB
Recommended Amplifier Power20 - 175 watts per channel
Inputs5-way binding posts 

Amplifier Specs

Amplifier Type


Cabinet Dimensions
Height36 1/2" (92.71cm) 
Width5 4/5" (14.73cm) 
Depth6 5/8" (16.83cm) 
Width8 1/4" (20.96cm) 
Depth10 1/2" (26.67cm) 
Product Weight (each)19.60 pounds


Unit of Measureeach 
Total Shipping Weight24.00 pounds


Speaker Warranty5 years parts and labor (original purchaser) 

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.

RM7400T Media

RM7400T 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.

RM7400T Accessories