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Klipsch RB-51 II Review

Klipsch RB-51 II Speaker
Klipsch RB-51 II
What We Like?
What we don’t like

Formed in 1946, the German company Klipsch Audio has been among the forerunners of the sound equipment industry. With decades of trial and error behind them, Klipsch offers speakers that are unique, durable, and impeccable in terms of audio quality.

They are considered as big competitors in the speaker market. Nowadays, space is money, and the price of most luxuries increase as the size of said luxury decreases making it more convenient to use.

The Klipsch Audio RB-61 ii bookshelf speakers offer a great low-cost product that is compact, yet powerful enough to satisfy audiophiles. It delivers fully defined sound, balanced in a way that makes it a pleasure for your ears to enjoy each tune. So, let’s go deeper into the Klipsch RB-61 ii review.


Rocking the classic and signature Klipsch copper and black theme, the RB-61 ii stands 15.4-inches tall. This is a combination of colors that can easily fit into pretty much any interior out there.

With its height being the only this that might be out of proportion relative to other bookshelf speakers, all other design features are technological marvels. Klipsch went with a front-firing port located right underneath the woofer cone, which is why the port is of the slotted variety.

From a purely aesthetic point of view, RB-61 II looks like many other Klipsch speakers. It has a simple yet stylish design. The cabinets are firm and made of quality MDF, covered by black vinyl.

The front face of this speaker is designed in a way that makes it look like it’s genuinely floating. If there is one thing that stands out with the Klipsch RB-61 II, it’s the amazing combination of hardware.

The woofer takes the form of a 6.5-inch cone which is highly responsive and gives an excellent deep bass. With the woofer is an enhanced titanium tweeter sitting comfy in the tractrix horn. These two transducers, when combined, have the power of 100 Watts RMS.


Let’s take a look at the Klipsch RB-61 ii’s specs

Cerametallic woofer: The cerametallic woofer, is a component designed to give the Rb-61 ii an outstanding low-frequency response with minimal cone breakup, giving the bass response of the speaker a deeper angle with more bass.

The bass becomes noticeable while it keeps a fine balance with sound clarity. This module is perfect for shelf speakers, where sound quality and clarity are imperative. The size of the woofer is 6.5-inches on each speaker, which gives the user more bass than one could get in a speaker of this size and build.

LTS Tweeter: The Linear Travel Suspension tweeter made by Kapton industries is a Klipsch trademark. It is embedded into the Klipsch RB-61 ii for a more enhanced, detailed volume performance. These tweeters are homogenous throughout all Klipsch speakers and give them their signature natural sound. This tweeter, coupled with the cerametallic woofers, produce a bass-enriched, stable sound that accommodates extreme high and low volumes — making it perfect for all audiophiles.

Front Port: There are two front-firing ports placed dynamically on the front of the speakers to reduce vibration, turbulence and in turn making the set more stable and dynamic. Typically, the firing ports are on the back, but with the increased bass of this model, the ports were kept on the face to compensate turbulence.


  • The 6.5-inch woofers that this Klipsch bookshelf speaker boasts pack a very strong punch.
  • They give an excellent low-frequency response and are good with low-frequency volumes.
  • The LTS tweeter provides a loud sound response
  • The high bass produces a very warm effect.
  • The best selling point, the bold, tall design fits well into speaker settings.
  • Compatibility with the Klipsch ecosystem.
  • Durability is a fundamental Klipsch promise, and they keep it very aptly with this model.
  • The casing and build are top-notch and thus becomes a long term investment.
  • The large woofers and tweeter make the speaker suitable for both large and small rooms.


  • The longer height becomes a disadvantage as the speaker becomes too big for bookshelves.
  • The speakers face a lack of modern connectivity, which is an essential for speakers today.
  • Bluetooth Not Available.
Klipsch RB-51 II Speaker
Klipsch RB-51 II

What’s in the Box?

  • 2 Bookshelf loudspeakers
  • 2 Detachable grills
  • 8 Self-adhesive rubber feet
  • A dual RCA cable to connect the two speakers
  • User Manual
  • Warranty sheet


The Klipsch RB-61m is an excellent product by the Klipsch Audio company. Yes, the speaker indeed lacks in a few regions, the size and connectivity being the center of that, but the speaker more than compensates for this in every other feature.

The excellence in sound quality and the extraordinary bass make the speaker attractive to audiophiles with a knack for bass. So, this is the best bookshelf speaker in this category. So, if the bass is your jam, the Klipsch RB-61 ii is the perfect investment for you.

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