RB-81

RB-81 Bookshelf Loudspeaker

A towering achievement in a bookshelf design, the Reference Series RB-81 delivers unrivaled audio performance for those who demand the very best. With its high-end materials and cosmetic elegance, this flagship model is definitely a force to be reckoned with.

Features

  • Ultra-high-performance bookshelf speaker
  • Front-firing port for easy integration into cabinetry
  • Tractrix® Horn eliminates acoustic interference from shelf installations

Detailed Description

Exclusive Tractrix® Horns have always been the key component of this critically acclaimed series. In the RB-81, this technology has been refined to include improved throat geometry for a more genuine, lifelike sound. Behind the horn lies a 1-inch titanium tweeter with a large ceramic motor structure to provide a unique combination of precision, clarity and effortless power.

The RB-81 employs an 8-inch woofer for a solid bass foundation. This Cerametallic™ woofer with inverted copper dust cap exhibits a very high stiffness-to-mass ratio and superb damping characteristics. 

The RB-81's front-firing port eliminates turbulence noise and makes installation into custom cabinetry a breeze. Increased baffle ribbing around the horn mouth dramatically improves acoustics across the sonic range. For signal purity and perfect driver integration, the crossover on the RB-81 features the finest components and Klipsch custom internal wiring.

Available in either a cherry or black woodgrain vinyl finish, the RB-81 comes with a low-diffraction, magnetically attached grille to further accentuate the elegance of this speaker.

RB-81 Specifications

frequency response46Hz-23kHz +/-3dB
power handling150W RMS / 600W Peak
sensitivity97dB @ 2.83V / 1m
nominal impedance8 ohms compatible
high frequency drivers1" (2.54cm) Titanium diaphragm compression driver mated to 90x60 square Tractrix® Horn
high freq crossover1800Hz
low frequency drivers8" (20.3cm) Cerametallic™ cone woofer
enclosure typeBass-reflex via front-firing port
height19" (48.3cm)
width9.25" (23.5cm)
depth12.25" (31.1cm)
mountingBottom mount: Dual 1/4"-20 threaded inserts for stand attachment
weight30lbs (13.6kg)
finishesCherry or Black Ash woodgrain vinyl
built from2006

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* Prices are US MSRP and may vary by country.

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Reviews

"The RB-81 is an extremely efficient speaker; its 97 dB sensitivity specification means that it can generate a big sound with low power receivers, but it's hearty enough to accomodate 150Wpc amplifiers."
- Playback Magazine [2/1/2008]

“I enjoyed every second I spent with these fascinating speakers.”
- Mark Fleischmann, Home Theater [10/1/2006]

"These high-efficiency speakers can run off of virtually any receiver."
- Mark Fleischmann, Home Theater [9/19/2006]

A Klipsch Group Company