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Klipsch THX Ultra2 Quad 5.25" Architectural Speaker - Item Number: KL-6504-THX
Architectural In-Wall 600 Watts Speaker for Flat Screen TVs by Klipsch

Architectural In-Wall 600 Watts Speaker for Flat Screen TVs by Klipsch

Sku: KL-6504-THX
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THX Ultra2 Quad 5.25" Architectural Speaker

Premium Performance in an In-Wall Speaker
Delivering music and home theater performances that are equivalent to a high-end floorstander, the KL-6504-THX is a premium architectural solution for flat-panel TVs. As one of the world’s first THX® Select2-certified in-wall speakers, it brings consistent and compelling audio to larger areas. You’ll discover it delivers effortless dynamic range and brings superior sound to larger rooms thanks to its highly regarded THX Select2 certification.

Unbeatable Sound
The KL-6504-THX employs four high-output 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 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.

The THX Ultra2 Architectural In-Wall 600 Watts Speaker for Flat Screen TVs by Klipsch at Furniture and ApplianceMart in the Stevens Point, Rhinelander, Wausau, Green Bay, Wisconsin Rapids, Marshfield, East and West Madison, Wisconsin area. Product availability may vary. Contact us for the most current availability on this product.


Item & Dimensions
Feature List
  • THX Select2-Certified for Superior Sound
  • Dynamic Range
  • Horn-Loaded for High Efficiency and Low Distortion
  • Sized for 42-inch and Larger Flat-Panel TVs
  • Easily Mounts Horizontally or Vertically
  • Maximum Installation Reliability
  • 200W Recommended Amplifier Power
  • High Frequency Crossover: 2100Hz & 250Hz
  • Four 5.25" (13.3cm) High-output, Fiberglass Cone Woofers
  • 1" (2.5cm) Titanium Diaphragm Compression Driver Mated to 90° x 90° Square Tractrix® Horn
  • Infinite Baffle, Front Flush with Wall Enclosure Type
  • MDF & Aluminum Motorboard / ABS Frame Enclosure
  • White Paintable Frame and Grille
  • Mix and Match with our Other THX Products
Item & Dimensions
Width (side to side)8" W
Depth (front to back)3.75" D
Height (bottom to top)28.5" H
Number of Speakers1
Weight18.3 lbs.
Power Handling
Maximum Power600 Watts
Nominal Power150 Watts
Frequency Response46Hz-20kHz
Impedance8 ohms
Driver Complement
Tweeter Size1"
Tweeter CompositionTitanium Diaphragm Compression Driver Mated 90° x 90° Square Tractrix® Horn
Mid-Range Size5.25"
Construction & Warranty
Enclosure ConstructionSealed or bass reflex via front-firing port MDF enclosure. Galaxy Black cabinet with Black anodized aluminum fascia finish.
Mounting CapabilitiesThe Omni-Mount suspension points facilitate wall or ceiling mounting using standard hardware. The sealed enclosure has the dado and rabbet construction used in Klipsch professional speakers, ensuring cabinet integrity in suspended applications.
WarrantyKlipsch warrants this product to be free from defects in materials and workmanship (subject to the terms set forth below) for a period of five (5) years from the date of purchase. During the Warranty period, Klipsch will repair or replace (at Klipsch's option) this product or any defective parts (excluding electronics and amplifiers). For products that have electronics or amplifiers, the Warranty on those parts is for a period of two (2) years from the date of purchase.

Klipsch THX Ultra2 Description

THX Ultra2 Series

To say the Klipsch THX Ultra2 speakers deliver mind-blowing intensity, consciousness-altering realism, and soul stirring magnificence is an understatement. You've never experienced home theater sound so accurate, dynamic, detailed and immersive. Few professional theaters can match the stunning high-output, low-distortion sound that earned this system the highest THX certification - THX Ultra2. Once you hear it, you'll have to have it.

The THX® Ultra2 custom home theater system proves that big movie theater sound is available in a convenient take home size. This award-winning system brings real cinema sound right to your living room by using the same professional-grade technology as Klipsch's renowned commercial theater products. Because it expertly delivers the raw explosiveness and fine detail of any film format, the Klipsch THX Ultra2 will shatter your expectations for home theater performance by creating the most dramatic and realistic entertainment experiences you've ever heard.

The THX Ultra2 collection is a great option if you are looking for Home Audio in the Stevens Point, Rhinelander, Wausau, Green Bay, Wisconsin Rapids, Marshfield, East and West Madison, Wisconsin area.

Collection Details

These images are representative of this group as a whole and may differ from this item.

THX Speakers Deliver the Ultimate Power, Detail and Emotional Impact for Your Home Entertainment

Cerametallic™ Woofers and 1-inch Titanium Diaphragm Compression Drivers Add to the Depth of Sound

Tractrix® Horn Tweeters Deliver the High Notes in Perfect Clarity and Accuracy

Buying Guides

Reference #: KL-6504-THX
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