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.
A Legend in Sound
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.
|FREQUENCY RESPONSE:||50Hz-24KHz ± 3dB|
|SENSITIVITY:||92dB @ 2.83V / 1m|
|POWER HANDLING:||75W RMS / 300W Peak|
|NOMINAL IMPEDANCE:||8 ohms compatible|
|LOW FREQUENCY DRIVER:||5.25" (13.3cm) Cerametallic™ cone woofer|
|HIGH FREQUENCY CROSSOVER:||1500Hz|
|ENCLOSURE TYPE:||Bass-reflex via rear-firing port|
|INPUTS:||Single binding posts|
|DEPTH:||10.7" (27.2cm) with grille|
|WEIGHT:||20.9lbs (9.5kg) per pair|
|MOUNTING:||Keyhole bracket and dual 1/4"-20 threaded inserts|
|FINISH:||Black Ash woodgrain vinyl|