Klipsch RB51 II BLACK (Black)

Reference series black bookshelf speaker pair

543593850

Your space deserves great sound, and the Klipsch Reference series RB-51 II bookshelf speaker is able to give it to you, without taking over your entire room. Utilizing a 1” titanium horn-loaded tweeter with Klipsch’s Tractrix horn technology, as well as a 5.25” Cerametallic woofer cone, you’ll be able to enjoy amazing, room filling sound that belies the RB-51 II’s bookshelf size. With the Reference series fifth generation, the updated crossover systems and drivers bring this speaker to a whole new level. Refinements to the look of the speaker make sure that it will seamlessly fit into your home theatre system.

Black cabinet. Priced and sold as a pair

Lost in space

Have you ever found yourself staring wistfully into space in your home theatre room, only to realize that there's no space to stare into? Free up some room, without compromising sound quality, with the Klipsch Reference series RB51 II bookshelf speakers. Using a 1" titanium tweeter, coupled with Klipsch's Tractrix horn, and an 5.25" Cerametallic woofer, you'll be able to get clean, accurate, room filling audio without eating up precious space in your home theatre room.

In space, no one can hear you . . .

When space is an issue, making a small speaker is all about making sure that it's efficient in how it produces sound. That's where the Klipsch Tractrix horns step in. By introducing the tweeter, through a horn, to a greater amount of surface area than it would otherwise meet, traditionally less efficient high tones are made much more efficient, without having to use additional power from your amplifier. Additionally, by precisely measuring the angles of the horn's shape and matching them to the driver, the sound is not only more powerful, but cleaner and more pleasing to the ear. A Tractrix horn lets you spend less time worrying about space, and more time spacing out your worries with great sound.

Space-age materials

Good engineering isn't the only way that Klipsch is giving you better audio, they're also using high quality materials in the RB51 II so the sound you hear is accurate and durable. A titanium tweeter, placed in a linear travel suspension, gives you natural, open feeling sound, while the specially treated Cerametallic woofer cones dampen the bass sound, giving you accurate, distortion free lows.

In the space of 60 years (or more)

Since we've spent so much time talking about space, we'll take a little space to talk about time. More specifically, the time that Klipsch has spent creating great quality speakers. Since Paul W. Klipsch founded his company in 1946 to produce speakers that could recreate orchestra quality sound in the home, the Klipsch company has been dedicated to creating horn driven speakers that produce the best, most accurate sound in the industry. Their Reference series speakers are now entering their fifth generation of design, which brings on updated drivers and crossovers to improve their sound quality, as well as new aesthetics that make sure your Reference series speaker fits in, and complements, your unique space.

The space between

One thing you won't want to space out with your new speakers are the wire connections between them and your amplifier. And when you're dealing with great sounding speakers like this, make sure you don't compromise your sound quality by relying on poorly made wiring. Check out our accessories tab, and talk with our experts using the 800-number above — you'll be glad you took the time.

Write A Review

Great speakers (April 18, 2012)

Ease of Use		(5/5.0)
Value		(5/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: Max K. - Annandale, VA

These are being used in a 5.1 setup in a fairly small room, and they fill the room with great quality sound.

SONIC MARVEL! (September 14, 2011)

Ease of Use		(5/5.0)
Value		(5/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: John M. - Yellowstone National Park, MT

These compact loudspeakers pack a huge punch. They emulate everything KLIPSCH is known the world over for. I replaced the Synergy Series with the Reference Series.....BLOWN AWAY !! Blazing fast and free shipping as usual. I cant even reveal the low price they hooked me up with on this pair. I highly recomend these RB 51II Reference Series for filling a smaller room with BIG SOUND. Vanns does it again.

Klipsch speakers (June 30, 2011)

Ease of Use		(5/5.0)
Value		(5/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: Andrew T. - Muncie, IN

Bought a pair of RB-51 II for a 2-channel setup in a library room. Sound is very detailed and clear. Excellent speakers!

Klipsch 51 II Speakers (March 04, 2011)

Ease of Use		(5/5.0)
Value		(5/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: Randy S. - Albuquerque, NM

I am using the speakers as rears in a 5.1 system and they are superb. They are not very large in size, but have a crisp, detailed sound to them. Also, they do not require a lot of power because of their high efficiency. When I first received them, I connected them alone to a receiver and was amazed with their ability to fill the room with great music quality. They would make nice fronts even in a good sized room...they are that vesatile. If I decide, to bump up to a 7.1 or 7.2, I will buy another pair.

Thanks Vanns

Comparison Specifications

Power rating: 75W (RMS) / 300W (peak)
Impedance: 8ohms compatible
Tweeter: 1" titanium diaphragm compression driver mate to a square Tractrix horn
Woofer: 5.25" Cerametallic cone woofer
Sensitivity: 92dB @ 2.83V/1m
Crossover: 1500Hz
Frequency response: 50Hz - 24kHz
Cabinet design: Black ash vinyl / bass-reflex via front firing port
Inputs: dual binding posts suitable for bi-wiring and bi-amping
Mounting options: keyhole bracket and dual 1/4"-20 threaded inserts

Dimensional Specifications

Dimensions: 6.5" W x 11.4" H x 10.7" D
Weight: 10.45lbs each

Klipsch RB51 II BLACK Warranty Details

5-year limited parts and labor

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