The Klipsch THX-502-L In-Wall Speaker brings cinema-quality dynamics and clarity to a compact architectural loudspeaker that virtually disappears into the wall. THX Select 2 Certified and designed for serious home theater applications, the THX-502-L combines dual 5.25-inch high-output fiberglass-cone woofers with a horn-loaded 1-inch titanium-diaphragm compression driver for powerful output, articulate dialogue, controlled dispersion, and the high efficiency associated with Klipsch theater speakers.
Its compact dimensions make the THX-502-L especially useful when high-performance sound is required but available wall space is limited. A symmetrical 90° × 90° square Tractrix horn allows the speaker to perform effectively when installed vertically or horizontally, providing flexibility for left-, center-, right-, and other direct-radiating applications. The infinite-baffle architecture keeps mounting depth to just 3.49 inches, while the edge-to-edge paintable magnetic grille allows the finished installation to blend discreetly into the room.
Key Features & Innovations
THX Select 2 Certified performance — the Klipsch THX-502-L In-Wall Speaker is engineered to deliver high-performance cinema sound from a discreet architectural format and is designed for use in demanding home theater systems.
Dual 5.25-inch fiberglass-cone woofers — two high-output woofers provide powerful bass and midrange reproduction while allowing the cabinet to maintain a compact, narrow profile for greater installation flexibility.
1-inch titanium-diaphragm compression driver — Klipsch's high-frequency architecture combines a lightweight titanium diaphragm with a compression-driver design for excellent efficiency, low distortion, and strong dynamic capability.
90° × 90° square Tractrix horn — the symmetrical horn provides controlled high-frequency dispersion and helps maintain consistent coverage whether the speaker is installed vertically or horizontally.
46Hz–20kHz frequency response — impressive low-frequency extension for a compact architectural speaker provides substantial bandwidth while allowing seamless integration with a dedicated theater subwoofer system.
92dB sensitivity — high efficiency helps the THX-502-L achieve substantial output while making effective use of available amplifier power.
100W continuous / 400W peak power handling — the speaker is engineered to reproduce demanding movie and multichannel music content with the dynamic impact expected from a dedicated cinema system.
Vertical or horizontal installation — the THX-502-L can be installed in either orientation, giving system designers additional flexibility when positioning speakers around or behind a display.
Infinite-baffle architecture — the speaker is designed to operate as an in-wall system without requiring a large integrated back enclosure, helping keep installation depth to only 3.49 inches.
Rigid MDF and aluminum motorboard construction — the speaker combines an MDF and aluminum motorboard with an ABS frame to provide a stable foundation for its high-output drivers.
Sure-grip mounting system — integrated mounting dogs apply even pressure against the drywall for a secure installation and long-term reliability.
Edge-to-edge magnetic grille — the flat, paintable grille attaches using neodymium magnets, providing a secure flush fit while helping the installed speaker visually disappear into the wall.
Timbre-matched THX speaker family — the THX-502-L is designed to integrate with other Klipsch THX-certified products, allowing multiple architectural models to be combined into a cohesive home cinema system.
FAQ — Klipsch THX-502-L
What is the THX-502-L designed for?
The THX-502-L is a direct-radiating in-wall speaker designed for high-performance home theater and multichannel audio systems. Its compact dimensions and symmetrical horn design allow it to serve in left-, center-, right-, and other direct-radiating speaker positions.
Can the THX-502-L be used as a center-channel speaker?
Yes. The THX-502-L can be installed horizontally or vertically, making it suitable for center-channel applications as well as left- and right-channel duties. Its symmetrical 90° × 90° Tractrix horn helps maintain consistent high-frequency coverage in either orientation.
How is the THX-502-L different from the THX-504-L?
The THX-502-L uses two 5.25-inch fiberglass-cone woofers, while the larger THX-504-L uses four. Both use a 1-inch titanium compression driver with a 90° × 90° Tractrix horn and have the same specified 46Hz–20kHz frequency response and 92dB sensitivity. The THX-504-L offers greater power handling and output capability, while the THX-502-L provides a considerably more compact installation footprint.
How much amplifier power can the THX-502-L handle?
The THX-502-L is rated for 100 watts continuous and 400 watts peak. Klipsch lists 150 watts as the recommended amplifier power, and the speaker's 92dB sensitivity allows it to achieve substantial output efficiently.
Does the THX-502-L need a subwoofer?
A dedicated subwoofer is recommended for a complete home theater system. Although the THX-502-L has a specified low-frequency extension to 46Hz, routing deep bass and low-frequency effects to a properly configured subwoofer system can provide greater headroom and dynamic capability.
Can the THX-502-L be installed horizontally?
Yes. Klipsch designed the THX-502-L to deliver consistent performance when installed either horizontally or vertically. This flexibility is particularly useful when installing the speaker as a center channel above or below a television or projection screen.
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