RB-51 II Bookshelf Speakers (pair)

(# 1011854) Product Support »

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.

  • Fills medium-sized rooms with dynamic sound reproduction
  • Das hoch effiziente Design erzeugt mehr Leistung und nimmt weniger Energie auf.
  • Accurate, non-fatiguing sound
  • Plays louder with less distortion than the competition
  • Optimierter 1" horngeladener Titaniumhochtöner mit Aufhängung für lineare Hubbewegung
  • 5,25" high-output Cerametallic woofer
  • Abmessungen: 11,4" H x 6,5" W x 10,75" D
  • Keyhole bracket for easy wall mounting
  • Dual threaded inserts for use with third-party stands
  • Schönes Gehäuse mit Holzmaserung-Vinyl


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 boast enhanced features, including re-engineered drivers and a new crossover system, to capture your attention and excite your emotions. In addition to the improved sound quality, the look of “big sound” has been redefined throughout the line with sophisticated cabinetry, refreshed logos and rounded feet.

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
  • Unsere leichten und doch robusten Cerametallic Tieftönerkonen sind mit besonders behandeltem Aluminium gefertigt, um Verzerrung besser zu dämpfen und zu verhindern.
  • 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.