Highly-Efficient Design: The Klipsch RB-51 II utilizes a
highly efficient design to produce more output using less power & energy for
louder sound with less distortion. The RB-51 II is able to fill smaller rooms with outstanding, accurate, non-fatiguing
sound that you can listen to for hours.
Tractrix Horn Tweeter: Each Klipsch RB-51 II features a
professional-grade 1.0-inch titanium-diaphragm compression driver inside a
square Tractrix Horn for smoother high-end response with greater extension,
enhanced imaging, and more powerful dynamics. The Tractrix Horns deliver a
90-degree wide by 60-degree high dispersion pattern for a broader sound-stage.
Behind each horn lies a 1.0-inch titanium tweeter with a linear travel suspension
for open, natural, sound.
Cerametallic Woofer: The 5.25-inch woofer of the RB-51 II features Klipsch's distinctive, copper-colored Cerametallic cones. Made with an anodized
aluminum, these cones are strong and dent resistant. The anodizing process
converts their inner and outer surfaces to ceramic. The outcome is a rigid cone
with superb damping characteristics that will not flex or resonate at
frequencies within the woofer's operating range. The 5.25-inch woofer also
employs a rubber surround for added durability.
Crossover Network: For signal purity and perfect driver
integration, the crossover on the RB-51 II features the finest components and
Klipsch custom internal wiring.
Bass Reflex Enclosure: The dual 5.25-inch Cerametallic cone
woofer and 1.0" titanium diaphragm compression driver are mounted in a bass
reflex enclosure which features a single rear-firing port. The RB-51 II's rigid
cabinet offers improved internal cross-bracing to minimize panel vibrations that
can color sound and a rear-firing port to eliminate turbulence noise. A
black metallic finished baffle around the horn mouth
and woofer dramatically improve acoustics across the sonic range. The bass reflex enclosure
features a MDF cabinet finished with a Black Ash wood-grain vinyl veneer.
Magnetic Grille: The bookshelf loudspeaker features a
removable magnetic grille which easily snaps into place over its cast-aluminum
front baffle. The speaker can be used with or without its grille in place.
Binding Posts: Each bookshelf loudspeaker is equipped
with one pair of sturdy binding posts to ensure a secure connection to many
types of speaker cables and connectors. The binding post terminals will accept
banana plugs (single only), pin-connectors, spade-connectors, and bare wire.
Rubber Feet: Each bookshelf speaker comes supplied with eight
self-adhesive rubber feet (4 for each speaker) so you can sit the speakers on a
stand or shelf securely. The rubber feet add approximately 0.3125" to the height
of each speaker. There are also two 1/4"-20 threaded inserts on the back of each
loudspeaker for mounting the speaker to third-party stands (sold separately).
Note: The two threaded inserts are spaced 3.0" apart.
Wall Mounting: Each Klipsch Reference bookshelf speaker
feature a single keyhole slot on the back of the cabinet for wall-mounting the
speaker without any additional wall-mount bracket (mounting screws not
Placement: The Reference Series bookshelf loudspeakers are
designed to perform well in a wide variety of locations but you will get the
most out of the speakers by following these simple guidelines.
- Place the front left and right speakers on shelves or stands with their
tweeters at approximately ear height for a seated listener. When used
surround sound speakers, they normally perform best when placed slightly
higher than ear level.
- The bookshelf loudspeakers should be equal distance from the floor and
the wall behind them. It can also helps to have the left and right speakers
at different distances from their nearest side walls. This sort of
staggering helps smooth the bass range.
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