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The key feature of the RF series is the exclusive, critically acclaimed Tractrix horn.

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Pros

audio is lively and clear, but doesn't modify the audio with extra warmth - leaves everything as the original recording was intended

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audiophile-satisfying clarity and detail, doesn't leave anything to be desired

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speaker grills are magnetically attached, makes it easy to remove them for cleaning without risking damaging them

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high-impedance compatibility enables a strong signal that resists interferrence

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capable of very loud volume output

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can handle a high amount of power and betray no distortion

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Cons

could use a separate subwoofer if used in a surround-sound system for proper balancing

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Edit

 

The Klipsch RF-63 is a high-performance floorstanding loudspeaker that falls in the upper half of the Reference Series RF speakers offered by Klipsch. The key feature of the RF series is the exclusive, critically acclaimed Tractrix horn. This technology has been refined for the RF-63 to include an improved throat geometry for more genuine, lifelike sound.  Behind the horn is a professional-grade 1.25" titanium diaphragm compression driver to give precise and clear sound. Below the horn there are triple 6.5" Cerametallic woofers with inverted copper dust caps.  These woofers have a very high stiffness-to-mass ratio and feature superb damping.  The cabinet is designed with internal crossbracing to minimize unwanted vibrations and three rear-firing ports eliminate turbulant noise.  There is also incresed baffle ribbing around the horn mouth for improved acoustics and premium binding posts for superior connectivity.  The Klipsch RF-63 are sold by the pair and available in a cherry or black real wood veneer finish with magnetically attached speaker grills. The RF-63 is also sold as the L/R speakers in the Klipsch RF-63 home theater system.

Specifications
  • Frequency response: 30Hz-21kHz +/-3dB
  • Power handling: 175W RMS / 700W Peak
  • Sensitivity: 99dB @ 2.83V / 1m
  • Nominal impedance: 8 ohms compatible
  • High freq crossover: 1700Hz
  • High frequency drivers: 1.25" (3.2cm) Titanium diaphragm compression driver mated to 90x60 square Tractrix Horn
  • Low frequency drivers: Triple 6.5" (16.5cm) High-output Cerametallic cone woofers
  • Enclosure type: Bass-reflex via triple rear-firing ports
  • Height: 46.1" (117.1cm) (w/feet)
  • Width: 8.5" (21.6cm)
  • Depth: 19.5" (49.5cm)
  • Weight: 81lbs (36.8kg)
  • Finishes: Cherry or Black Ash wood veneer
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