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.
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.
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.
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.
Sleek Design
Exposed fasteners, low profile magnetic grilles and a scratch-resistant, textured wood grain vinyl give the Reference Series a polished, modern appearance.
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.
| FREQUENCY RESPONSE | 62Hz - 21kHz +/- 3dB |
| SENSITIVITY | 93 dB @ 2.83V/1M |
| POWER HANDLING (CONT/PEAK) | 85W/340W |
| NOMINAL IMPEDANCE | 8 ohms Compatible |
| CROSSOVER FREQUENCY | 1,660 Hz |
| HIGH FREQUENCY DRIVER | 1” Aluminum LTS tweeter mated to a 90 x 90 square Tractrix® Horn |
| LOW FREQUENCY DRIVER | Single 5.25” spun-copper IMG woofer |
| ENCLOSURE MATERIAL | MDF |
| ENCLOSURE TYPE | Bass-Reflex via rear-firing ports |
| INPUTS | Single Gold Plated Binding Posts |
| HEIGHT INCHES (MM) | 13.3” (338 mm) |
| WIDTH INCHES (MM) | 7” (178 mm) |
| DEPTH INCHES (MM) | 8.5” (215 mm) |
| PRODUCT WEIGHT LBS (KG) | 11 lbs (5 kg) |
| FINISHES | Black Textured Wood Grain Vinyl |
| INCLUDED ACCESSORIES | Rubber Feet (4) |
Get amazing sound at great prices. Klipsch Certified Factory Refurbished audio products have been tested, inspected and approved for sale by a Klipsch quality assurance professionals.
*Some products may have cosmetic blemishes, imperfections, cabinet damage (small dings, scuffs, scratches, chips in finish or dents), but are sonically un-blemished. We are unable to provide exact details or photos of each item for sale.
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