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Klipsch Reference Bookshelf Speaker-RB-81 II

Model #: RB-81 II
At a Glance

Klipsch Reference Bookshelf Speaker with our proprietary Tractrix® Horn technology which produces a unique combination of precision, clarity and effortless power available in Black Ash and Cherry

Available in Store Only

Get to know this product.

A towering achievement in a bookshelf design, the Reference Series RB-81 II is a force to be reckoned with. It provides unrivaled music and movie performances to those who demand the very best, but don’t have the room to accommodate a floorstanding speaker.

Tractrix® horn technology

  • Proprietary technology provides a unique combination of precision, clarity and effortless power

CERAMETALLIC™ cone woofer

  • Our light, yet rigid Cerametallic woofer cones feature specially treated aluminum to help better dampen and prevent distortion

Titanium tweeter

  • Titanium tweeter with linear travel suspension—trickle-down technology from our flagship Palladium Series—provides an open, natural sound, making you feel as if you’re in the studio with the recording artist or on the set of a film
Dual Binding Posts
  • Allow for the bi-wiring or bi-amping of speaker
Front-firing Port
  • Grants placement flexibility without sacrificing consistent bass performance


Connector Type:Dual binding posts / bi-wire / bi-amp


Enclosure Type:Bass-reflex via front-firing port
Tweeter Composition:Titanium
Woofer Composition:Cerametallic™ Cone


Crossover Type:1400Hz


Speaker Output Power:150
Sensitivity:97dB @ 2.83V / 1m
Speaker Type:Bass Reflex


Color:Available in Two Colors

Misc. Specs

Product Weight27.5000
Impedance8 ohms
Maximum Power Handling (Watts)600
Number of Speakers1
Depth (in.)12.3
Height (in.)19
Width (in.)9.3
Woofer Size8
WarningProposition 65 Warning for California Residents