R 51 M Pair
R 51 M Angle
R 51 M Angle Grille
R 51 M Front
R 51 M Back
R 51 M Front Grille
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R-51M Klipsch® Certified Factory-Refurbished

Bookshelf Speakers

Leveraging a 1" aluminum tweeter matted to our proprietary Tractrix horn-loaded technology - the R-51M bookshelf speaker delivers incredible acoustics to fill your home with loud, crystal-clear sound and robust bass that no ordinary bookshelf speaker can.

Klipsch® Certified Factory Refurbished audio products have been tested, inspected, and approved for sale by a Klipsch quality assurance professional. All Klipsch Certified Factory Refurbished audio products pass the same strict performance standards as our brand-new products and carry little or no blemishes or imperfections.

All Klipsch Certified Factory-Refurbished products come backed with our standard Limited Warranty and Free 90-Day Return Guarantee.

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Free Ground Shipping
Extended 90-day Returns
Limited Warranty
Customer Support
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“If you like your rock or pop music loud, the Klipsch R-51M can inject a dose of fun into your system for an affordable price.“

Ty Pendlebury, CNET.com Editor

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Reference 2018 Bookshelf Horn

Tractrix® Horn Technology

Klipsch exclusive 90x90º Tractrix® horn technology ensures that the R-51M high frequency energy is aimed at the listener and reduces artificial reverb or filtering caused by indirect sound bouncing off of walls. Using this proprietary focused technology gives you the best clarity, dynamics, and detail from your movies and music.

Reference LTS Tweeter

LINEAR TRAVEL SUSPENSION TWEETER

WITH KAPTON® SUSPENSION

Klipsch exclusive Linear Travel Suspension (LTS) aluminum tweeter minimizes distortion for enhanced, detailed performances. Using Kapton, an extremely light and rigid material, in the tweeter suspension provides high efficiency and improves resolution and detail. LTS tweeters are a hallmark of Klipsch speakers, making them some of the best speakers in the world.

Reference 2018 Bookshelf Woofers

Spun Copper IMG Woofers

Injection Molded Graphite (IMG) woofer cones are exceptionally light while being extremely rigid – providing remarkable low frequency response, with minimal cone breakup and distortion. When paired with the Tractrix Horn-Loaded LTS Tweeter, it provides speaker efficiency highest in its class.

Reference 2018 Bookshelf Finish

Sleek Design

Exposed fasteners, low profile magnetic grilles and a scratch-resistant, textured wood grain vinyl give the Reference Series a polished, modern appearance.

Reference 2018 Bookshelf Cabinet

HIGH QUALITY CABINET DESIGN

Reinforced MDF construction reduces cabinet vibration for less audible coloration and improved sonic accuracy - giving you the ultimate listening experience that's built to last.

Features

Key Product Features

Documents

Spec Sheet

For more technical detail, download the Spec Sheet here: R 51 M Spec Sheet v01 .

Product Manual

Download the Product Manual for R-51M Klipsch® Certified Factory-Refurbished Bookshelf Speakers here: Reference Speakers 2018 Manual .