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Klipsch RB-51 II Black (Pr.) 2-Way Bookshelf Speakers

Klipsch  RB-51 II Black (Pr.) 2-Way Bookshelf Speakers

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Top Features
  • Fills medium-sized rooms with dynamic sound reproduction
  • Plays louder with less distortion than the competition
  • Enhanced 1" titanium horn-loaded tweeter, 5.25" high-output woofer
Open Box Available - Only $299.92!

SKU# 106406


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Klipsch RB-51 II Black (Pr.) 2-Way Bookshelf Speakers

A wide-open soundstage and amazing sonic purity—that's what Klipsch speakers are known for. Their signature Tractrix® technology results in very little distortion from an exceptionally efficient design. Each speaker incorporates a 1' horn-loaded tweeter that delivers magnificent high-frequency detail, plus a high-output woofer measuring 4', 5.25', 6.5', or 8'.

The RB-51 II speaker offers up no-compromise music and movie performances in a smaller, more affordable bookshelf design. In fact, with its dynamic quality, superior sound and visual appeal, you’ll find this speaker simply irresistible.

The RB-51 II is complete with our proprietary Tractrix® Horn technology which produces a unique combination of precision, clarity and effortless power. Finished in a beautiful black ash woodgrain vinyl veneer, the RB-51 II is guaranteed to complement any décor.

New and Improved
Now in its fifth generation, Reference II speakers have even more content and superior sound quality for you to enjoy. You’ll find re-engineered drivers throughout combined with a new crossover system that will capture your complete attention and excite your emotions. Improved cosmetics, including black metallic finished baffles, cerametallic woofers, new logos and feet, redefine the look of “big sound” throughout the line.

Four Laws of the Klipsch Universe
Beginning in 1946, company founder, Paul W. Klipsch believed four principles to be the foundation for great sound. Together, these four design principles—high efficiency with low distortion, controlled directivity, flat frequency response, and wide dynamic range—have and always will be the foundation for our stunningly powerful and precise sound.
  • Every Reference speaker utilizes our Tractrix® Horn technology for lifelike sound, more output using less energy, improved reliability, reduced distortion and a large soundstage with well-defined imaging.
  • Our light, yet rigid Cerametallic woofer cones feature specially treated aluminum to help better dampen and prevent distortion.
  • Titanium tweeter with linear travel suspension—trickle-down technology from our flagship Palladium Series—provides an open, natural sound, making you feel as if you’re in the studio with the recording artist or on the set of a film.
  • Enhanced crossover frequencies offer smoother on-axis and off-axis integration.
Q & A
Features & Specs

Additional Information

Product ID 106406
UPC 743878021868
Brand Klipsch
SKU 106406
Manufacturers Part Number RB-51 II Black (Pr.)
Detailed Specifications
  • POWER HANDLING 75W RMS / 300W Peak
  • SENSITIVITY 92dB @ 2.83V / 1m
  • NOMINAL IMPEDANCE 8 ohms compatible
  • HIGH FREQUENCY DRIVERS 1" (2.54cm) Titanium diaphragm compression driver mated to 90° x 60° square Tractrix® Horn
  • LOW FREQUENCY DRIVERS 5.25" (13.3cm) Cerametallic™ cone woofer
  • ENCLOSURE TYPE Bass-reflex via front-firing port
  • INPUTS Single binding posts
  • HEIGHT 11.4" (28.9cm)
  • WIDTH 6.5" (16.5cm)
  • DEPTH 10.7" (27.2cm) with grille
  • MOUNTING Keyhole bracket and dual 1/4"-20 threaded inserts
  • WEIGHT 20.9lbs (9.5kg) per pair
  • FINISHES Black Ash woodgrain vinyl
  • Manufacturer Warranty 5 Years Parts / 5 Years Labor
    Product Weight 10.5
    Color Black
    Width (inches) 6.5
    Height (inches) 11.4

    Klipsch Warranty Included:

    5 Years Parts / 5 Years Labor