Klipsch RC-64 III Reference Quad 6.5″ Driver Centre Channel Speaker


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Klipsch’s flagship Reference center channel: Measuring nearly three feet wide and weighing in at a massive 55 pounds, the Klipsch RC-64 III is not your average-sized center channel. Nor does this expertly designed, hand-built speaker produce average sound. It delivers vivid center-stage detail with every stroke of its four 6-1/2″ woofers and dynamic 1-3/4″ horn-loaded tweeter. If you’re building a high-end Reference Series surround sound system — and have a nice chunk of space available — the RC-64 III is an excellent choice as the centerpiece of your home theater.

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Klipsch RC-64 III: More Information

Horn Loaded Tweeter

The Klipsch RC-64 III features a newly designed 1.75-inch titanium-diaphragm compression driver inside a molded rubber square Tractrix Horn for smoother high-end response with greater extension, enhanced imaging, and more powerful dynamics. The 6.25″ square Tractrix Horn delivers a 90° (w) x 90° (h) dispersion pattern for a broader sound-stage.

  • Tractrix Horn Tweeter: The Klipsch RC-64 III features a professional-grade 1.75″ titanium-diaphragm compression driver inside a molded rubber square Tractrix Horn. The compression driver features a new phase plug design to improve phase coherency at the throat of the horn, resulting in improved sound pressure linearity at high frequencies.
  • Molded Rubber Square Tractrix Horn:  The redesigned Tractrix Horn utilizes a circular horn throat paired to a square horn mouth to further improve high-frequency response and extension, while enhancing imaging and dynamics. The compressed molded rubber construction adds high frequency damping to reduce harshness and improve detail. This creates the cleanest, most natural sound possible.

Quadruple Cerametallic Woofers

The four 6.5″ woofers of the RC-64 III feature Klipsch’s distinctive, copper-spun Cerametallic cones. Made with an anodized aluminum, these cones are strong and dent resistant. The anodizing process converts their inner and outer surfaces to ceramic. Each 6.5″ woofer feature a heavy-duty cast aluminum frame for resonant-free operation. In addition, each woofer incorporates a dual shorting-ring magnet structure design to eliminate modulation of the magnetic flux resulting in improved linearity of cone movement. The 6.5″ woofers also employ a rubber surround for added durability. The outcome is a rigid cone with superb damping characteristics that will not flex or resonate at frequencies within the woofer’s operating range.

2.5-Way Crossover Network

The sophisticated 2.5-way crossover network design of the RC-64 III attenuates the outer woofers output at higher frequencies to minimize horizontal interference off-axis to the loudspeaker. This maintains a wide and even sound distribution, ensuring each listener hears the center channel information exactly as intended.

Dual Binding Posts

The speaker has two sets of binding posts connected by jumpers. Using the dual binding posts, you can bi-amp or bi-wire the speakers (make sure to remove the jumpers in this scenario). The binding post terminals will accept banana plugs (single only), pin-connectors, spade-connectors, and bare wire (16AWG – 10AWG).

  • Bi-Wiring: Bi-wiring can provide noticeable improvements in the overall transparency of your loudspeakers. Run separate speaker wires to the low & high frequency drivers from a single amplifier (the upper set of binding posts are for the high frequency drivers; the lower set of binding posts are for the low frequency drivers).
  • Bi-Amping: Bi-amping allows you to use separate amplifiers for the high & low frequency sections of your loudspeaker for greater dynamic range & lower distortion. We recommend that your separate amplifiers have identical gain to preserve the speaker’s voicing balance.

Magnetic Grille

The RC-64 III center-channel loudspeaker features a removable magnetic grille which easily snaps into place over its cast-aluminum front baffle. The speaker can be used with or without its grille in place.

Rubber Feet

The center channel speaker comes with six self-adhesive rubber feet to secure the speaker in place and prevent any damage to your stand’s or shelf’s surface. The rubber feet add approximately 0.3125″ to the height of each speaker.

Product highlights:

  • hand-built in Hope, Arkansas
  • frequency response: 57-24,000 Hz (±3dB)
  • power handling: up to 200 watts RMS (800 watts peak)
  • sensitivity: 99 dB
  • impedance: 8 ohms compatible
  • Tractrix® horn with 1-3/4″ titanium dome tweeter
  • four 6-1/2″ Cerametallic™ woofers
  • furniture-grade walnut wood veneer
  • dual binding posts for bi-amping or bi-wiring
  • 35-13/16″W x 8″H x 15″D
  • weight: 55 lbs.
  • warranty: 5 years

What’s in the box:

    • Center channel loudspeaker
    • Grille
    • 6 Self-adhesive rubber feet
    • 2 Jumpers (pre-installed)
    • Owner’s Manual

Additional information


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Professional Installation Required?