Klipsch Reference Premiere RP-640D Wall-mountable Flat-panel (L/C/R)Home Theater Speaker

Product Research

Horn-Loaded Tweeter:

  • The Klipsch Reference Premiere RP-640D features proprietary Tractrix Horn technology coupled with a Linear Travel Suspension (LTS) titanium tweeter to produce clean, natural high frequencies.

90° x 90° Tractrix Horn:

  • The Tractrix Horn's geometry helps to improve high-frequency response and extension, while enhancing imaging and dynamics.
  • The 90° x 90° Tractrix Horn also focuses the high frequency sounds towards the listening area, for the cleanest, most natural sound possible.

LTS Tweeter:

  • Behind the Tractrix Horn lies a 1" titanium tweeter with a Linear Travel Suspension (LTS) for open, natural, sound.
  • The Linear Travel Suspension (LTS) minimizes distortion for enhanced, detailed performance.

Spun-Copper Cerametallic Woofers & Passive Radiators:

  • The RP-640D loudspeaker features two 3.5" woofers and four 3.5" passive radiators made from Klipsch's distinctive, spun-copper Cerametallic material.
  • Made with an anodized aluminum, the cone is strong and dent resistant. The anodizing process converts its inner and outer surfaces to ceramic.
  • The outcome is a rigid cone with superb damping characteristics that will not flex or resonate at frequencies within the woofer's operating range.
  • The woofers and passive radiators also employ a rubber surround for added durability.

ABS Enclosure w/ Wrap-Around Grille:

  • The speaker enclosure is made of ABS and features a matte black painted finish.
  • The speaker also comes with a removable, wrap-around cloth magnetic grille which easily snaps into place over the ABS enclosure.

Spring-Post Terminals:

  • The RP-640D is equipped with spring-post terminals to connect bare speaker wire from 16AWG to 12AWG.
  • Due to the position of the spring-post terminals they will not accept banana plugs or pin-connectors.


  • The RP-640D on-wall speaker can be used as a front, center, or surround speaker in a home theater setup.

Placement for Front Speakers:

  • For the most spacious sound place a pair of speakers 6' to 15' apart with the listening position about 1-.5x the distance separating the speakers.
  • However, excellent sound can still be achieved by placing these speakers close to both sides of your TV if that is more aesthetically pleasing.

Placement for Center Speaker:

  • Since a center-channel speaker is designed to place dialogue and primary sounds so that they appear to come from the video screen.
  • The speaker should therefore be placed horizontally, as close to the screen as possible, preferably at least 1" directly below the screen.

Placement for Rear speakers:

  • As rear surrounds, a pair of speakers should be placed approximately 2' above the listening position (typically this will be about 5'-7'above the floor.
  • The surrounds should be placed on the walls directly adjacent to the listening position or on the wall behind the listening position.

Mounting Options:

  • The RP-640D on-wall loudspeaker can be mounted vertically or horizontally when wall-mounted or attached to the included table-top base.
  • The included wall-bracket and dual four-way keyhole slots allow for easy, tight-to-the-wall mounting (mounting screws not included).
  • The included glass base provides a table-top solution for placing the speaker on a stand, table, or shelf (the base attaches to the speaker using the two included screws).

Wall-Mount Dimensions:

  • Vertical: 6.0" (w) x 28.5" (h) x 2.5625" (d)
  • Horizontal: 28.5" (w) x 6.0" (h) x 2.5625" (d)
Table-Top Dimensions:
  • Vertical: 9.0" (w) x 29.9375" (h) x 6.0625" (d)
  • Horizontal: 28.5" (w) x 7.125" (h) x 6.0625" (d)
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