Klipsch KL-6504-THX Ultra 2 Series In-Wall Speaker x3

Brand: Klipsch
Model Number: 150058
Model Number: 150058





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 Klipsch KL-6504-THX Ultra 2 Series In-Wall Speaker – (3)

  • THX Select2-certified for superior sound
  • Horn-loaded for high efficiency and low distortion
  • Sized for 42-inch and larger flat-panel TVs
  • Easily mounts horizontally or vertically
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Product Description

Features & Specifications



Klipsch KL-6504-THX Ultra 2 Series In-Wall Speaker – (3)

Never before has Klipsch offered such premium performance in an in-wall speaker. You’ll discover it delivers effortless dynamic range and brings superior sound to larger rooms thanks to its highly regarded THX
Select2 certification.

The Klipsch KL-6504-THX employs four highoutput 5.25-inch fiberglass woofers for powerful bass impact, while a 1-inch titanium tweeter mated to a new symmetrical pattern 90 x 90 square Tractrix® Horn generates flat in-room frequency response with high efficiency and low distortion. This exclusive horn design also allows the speaker to consistently deliver unbeatable sound, whether it’s installed horizontally or vertically.

The Klipsch KL-6504-THX’s titanium horn-loaded tweeter is mated to the woofers using precision-voiced, high-definition crossover networks, creating high sensitivity. This makes the speaker easier to drive, so it requires a lot less amplification power than conventional designs.

Adding to its first-class sound, the Klipsch KL-6504- THX also has a premium look and feel with its grille off, featuring a deluxe MDF baffle with aluminum fascia. But when covered, the speaker’s paintable grille allows it to blend in perfectly with any home décor. All-new sure-grip mounting dogs offer even pressure against drywall for long-term installation reliability.

Furthermore, the KL-6504-THX comes with a lot of options. It is timbre matched to all of our THX-certified products, so you can mix and match for the discreet stereo or home theater system that’s just right for you.

The THX difference

This speaker bears the THX Select2 seal of approval, which means it can produce crisp, clear sound at highly demanding reference levels in rooms as large as 2,000 square feet. You can install a pair of KL-6504-THXs to the left and right of your flat-panel TV, and even set one horizontally as your center channel speaker for stunning home theater sound.

Four rigid 5-1/4″ fiberglass woofers deliver tight, surprisingly deep bass and clear mids. A 1″ titanium tweeter produces clean, precise highs.

Horn technology for focused sound

The Klipsch KL-6504-THX uses a horn-loaded tweeter. A flared opening projects high frequencies toward your listening area and prevents sound waves from simply spilling out in all directions. This horn design helps the speaker reproduce accurate detail with everything you listen to, while reducing reflections that can color the sound. The horn also improves dynamics and efficiency, for powerful, “front row” sound that remains crystal clear at all volume levels.

An optional in-wall bracket is recommended for installing the KL-6504 THX in new construction.


Model 150058
Product: Klipsch KL-6504-THX Ultra 2 Series In-Wall Speaker x3
Weight 8.3 kg
Dimensions 95.25 × 203.2 × 723.9 mm
Speaker Size


Number of Speakers

1 Speaker

General Specifications

– Bandwidth 46 Hz – 20 kHz ± 3dB
– Sensitivity 92 dB
– Nominal Impedance 4 Ohms
– Cross Over Frequency 250 Hz & 2100 Hz
– Power Handling 150 Watts Cont. 600
– Enclosure Type Infinite Baffle – Front Flush with Wall
– Drive Components Two and a half way system utilizing a 1” Titanium tweeter in a 4” 90×90 horn, and Two 5.25” Fiberglass
– Woofers – THX Certified
– Cutout Height 27.25 in / 69.2cm
– Cutout Width 6.5 in / 16.5cm
– Material 0.14 in / 3.5 mm ABS

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Klipsch offers a limited lifetime Warranty – Architectural Speakers


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