Klipsch Reference Premiere RP-504C 2.5-Way Center Channel Speaker (Ebony)

Model #1065810

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General Information

Frequency Response ± 3dB 58 Hz to 25 kHz
Sensitivity 97 dB @ 2.83 V / 1 m
Power Handling RMS: 150 WPeak: 600 W
Nominal Impedance 8 Ohms compatible
Crossover Frequencies 500 Hz, 1500 Hz
Low Frequency Drivers 4x 5.25" / 13.34 cm Cerametallic cone woofers
High Frequency Driver 1x 1" / 2.5 cm titanium LTS vented tweeter
Horn 90 x 90° silicon composite hybrid cross-section Tractrix horn
Enclosure Material MDF
Enclosure Type Bass reflex via rear-firing Tractrix port
Inputs 1 x 5-way binding post pair
Dimensions (W x H x D) 31.13 x 6.81 x 14.46" / 79.1 x 17.3 x 36.7 cm
Weight 34 lb / 15.4 kg
User Reviews
Abt electronics.32817785
23 February 2020

Updated my Polk with this one today and listened to cds and just got done watching Star Trek Beyond. Omg super clear sound and a good tight one too. Now my Polk audio 20 year old towers need to be replaced with the 8000. That is the only draw back, money!

World wide stereo.35175196
2 January 2020

I can't put into words how much I love the sound from this center matches my system perfectly.

19 July 2018

Awesome speaker. Using with vintage JBL GHE1000v bi-amped towers and am very happy how the 450c compliments my system.

26 October 2018

Great sound, a lot bigger than the other 4 driver that has the exposed screws. I think the bigger 2 driver would've been enough for me but at the time 100 dollar difference it didn't make sense.

1 September 2020

This was an upgrade for my awesome sounding S35 Signature Series Center Channel speaker by Polk Audio. This added a serious level of clarity and depth to out home theater experience. It was worth every penny for that level of quality.

  • +

    The range of sounds that it can handle comfortably without strain or distortion.

  • -

    The size is very large, so you need to have space for it in your setup. Not really a con, but should be noted that this is a huge speaker.

Abt electronics.32817785
24 March 2020

Sounds as good as it looks! Couldn’t have been happier with my purchase. The only thing is that I should've got it sooner! I have it paired with Reference Premiere dual 8” towers along with the new and improved spl150 and spl120 bass cannons.

16 August 2018

For several years, I had trouble listening to dialog using my older, much smaller Center Channel. My entertainment room has a high ceiling, and is part of open concept area. I researched Center channels for months, reading many many reviews. I waited about 6 months for this speaker to go on sale.

Abt electronics.32817785
12 October 2020

Wonderful full sound compare to my old center speaker. Definitely more clarity. Great speaker for the money. Can’t go wrong

18 March 2018

I really can't imagine any center channel anywhere else by any other brand that sounds as good as this does at this price point. Even at double or triple this price point. Dialogue is extremely clear, detailed, and conveys beautiful depth, all combined producing an excellent sound stage for movies...

17 July 2020

I bought this RP-450C with the intent of testing it against a Klipsch RP600C I already owned. I wanted to see if there was an improvement in the sound. I have had this hooked up for only a few days and I can already tell it is a keeper. Great sound and it seems to emphasize the bass.

  • +

    Very efficient speaker, great sound.

  • -

    Must have room for mounting, rather large.

Product Highlights
  • 2.5-Way Speaker Design
  • Up to 150W Continuous Power Handling
  • Quad 5.25" Cerametallic Cone Woofers
  • 1" Titanium LTS Vented Tweeter
  • Hybrid Cross-Section Tractrix Horn
  • 58 Hz to 25 kHz Frequency Response
  • 8 Ohm Impedance
In The Box
  • Klipsch Reference Premiere RP-504C 2.5-Way Center Channel Speaker (Ebony)
  • Grille
  • Rubber Bumpers
  • Limited 5-Year Warranty
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