Klipsch THX-502-L THX Select 2 In-Wall LCR Speaker (Each) at Vinyl Sound Toronto Canada

The THX-502-L is a THX Select 2 Certified 2-way in-wall LCR speaker from Klipsch (Indianapolis, Indiana, USA), available at Vinyl Sound in Toronto, Canada. Part of Klipsch's THX Cinema Series, it is among the world's first THX Select 2 certified in-wall speakers and delivers effortless dynamic range and consistent cinema-quality audio in a fully flush-mount architectural installation. The speaker combines dual 5.25" High-Output Fiberglass Cone Woofers with a 1" Titanium Diaphragm Compression Driver mated to a 90° x 90° square Tractrix Horn, operating over a measured frequency range of 46Hz to 20kHz (+/-3dB) at 92dB sensitivity and 8 ohms switchable impedance. It handles 100W continuous and 400W peak, with a recommended amplifier power of 150W. The dual crossover points at 1200Hz and 2100Hz manage the frequency handoff between the woofer pair and the compression driver, and the infinite baffle enclosure design uses the wall cavity as its working acoustic environment. The THX-502-L mounts horizontally or vertically and is spectrally matched to all other Klipsch THX-certified products for complete system coherence.

Dual 5.25" Fiberglass Woofer Array and 90° x 90° Square Tractrix Horn

The THX-502-L uses a vertical arrangement of two high-output 5.25" fiberglass cone woofers flanking a central 1" titanium diaphragm compression driver, mounted to an aluminum motorboard and ABS frame structure for a resonance-resistant baffle. The dual-woofer configuration distributes the acoustic load across two drivers, reducing individual cone excursion requirements and lowering distortion at high drive levels while extending the usable bass response to a measured 46Hz. This combined cone area exceeds what a single 5.25" driver of the same size would produce, enabling the THX-502-L to reach the output levels demanded by THX Select 2 certification without driver strain. The central 1" titanium compression driver couples into a 90° x 90° symmetrical square Tractrix horn, delivering controlled, flat high-frequency dispersion across the full listening area. The dual crossover network at 1200Hz and 2100Hz governs the transition between the woofer array and the compression driver, contributing to the smooth, uncolored midrange that cinema-quality LCR reproduction requires. The switchable 8-ohm impedance design provides additional installation flexibility for multi-speaker distributed audio systems requiring impedance management.

THX Select 2 Certification and System Integration

THX Select 2 is a mid-tier THX home theater speaker certification, validated by THX Ltd. for consistent, reference-level multi-channel audio reproduction in rooms from approximately 2,000 cubic feet. The THX-502-L's Select 2 status makes it appropriate for standard dedicated home cinema rooms, large living rooms, and open-plan spaces where room volume falls in the mid-to-large range without reaching the 3,000 cubic feet threshold of the THX Ultra2 tier. The THX-502-L is the more compact sibling of the THX-504-L, sharing the same driver technology and THX Select 2 certification tier but using two rather than four 5.25" woofers, resulting in a narrower cabinet footprint that requires a 16.5" x 6.5" cutout versus the THX-504-L's 27.25" x 6.5" cutout. Both carry the same THX Select 2 certification and are timbre-matched to the full Klipsch THX Cinema Series lineup, including the THX-8000-S surround speaker, for consistent tonal character across every channel in a complete architectural home theater build. The infinite baffle enclosure type means the wall cavity acts as the acoustic environment, allowing the speaker to reach its 46Hz bass extension from within the standard stud-bay installation depth of 3.75".

Key Features

• THX Select 2 Certified: Among the world's first THX Select 2 certified in-wall speakers, validated by THX Ltd. for effortless dynamic range and consistent cinema-quality audio in home theater rooms of 2,000 cubic feet or larger at reference levels.
• Dual 5.25" High-Output Fiberglass Cone Woofers: Two woofers in a vertical array distribute the acoustic load across combined cone area, lowering distortion at high output levels and enabling a measured 46Hz lower extension from an infinite baffle installation at 3.75" mounting depth.
• 1" Titanium Diaphragm Compression Driver with 90° x 90° Square Tractrix Horn: A titanium diaphragm compression driver mated to Klipsch's proprietary square Tractrix horn provides symmetrical controlled high-frequency dispersion with high efficiency and low distortion across the full listening area.
• Dual Crossover Points at 1200Hz and 2100Hz: The two-point crossover network manages the frequency transition between the woofer array and the compression driver through the critical midrange band for smooth, uncolored tonal blending.
• 8-Ohm Switchable Impedance: Selectable impedance provides additional flexibility for distributed audio system design, allowing the THX-502-L to be integrated into multi-speaker networks requiring impedance management across zones.
• Infinite Baffle Enclosure Design: The wall cavity acts as the acoustic working volume, enabling deeper bass extension than a self-contained sealed back-can of the same footprint and integrating the speaker fully into the wall construction.
• Horizontal and Vertical Installation: Consistent performance in both mounting orientations supports horizontal center channel placement below a projection screen as well as vertical LCR mounting for left and right front positions.
• Timbre Matched to Klipsch THX Cinema Series: Spectrally matched to the THX-8000-S, THX-504-L, and all other Klipsch THX-certified products for tonal coherence as audio pans between all channels in a complete system build.
• Sure-Grip Mounting Dogs: Cam-style mounting dogs distribute clamping force evenly against the drywall cutout perimeter for long-term installation reliability without loosening or shifting.
• Edge-to-Edge Magnetic Paintable Grille: A full-face grille secured by premium Neodymium magnets covers the entire speaker face, accepts standard interior paint, and removes without tools for driver access.

Technical Specifications

Frequently Asked Questions

What is the Klipsch THX-502-L?

The Klipsch THX-502-L is a THX Select 2 Certified 2-way in-wall LCR speaker from Klipsch's THX Cinema Series, featuring dual 5.25" fiberglass cone woofers and a 1" titanium diaphragm compression driver mated to a 90° x 90° square Tractrix horn. It delivers a frequency response of 46Hz to 20kHz at 92dB sensitivity and 8 ohms switchable impedance, handling 100W continuous and 400W peak. It uses an infinite baffle enclosure design at 3.75" mounting depth, installs horizontally or vertically, and is among the world's first THX Select 2 certified in-wall speakers.

What is the difference between the Klipsch THX-502-L and the THX-504-L?

The Klipsch THX-502-L and THX-504-L share the same THX Select 2 certification tier, identical driver technology including the 1" titanium compression driver with 90° x 90° square Tractrix horn, the same 46Hz to 20kHz frequency response, and the same 92dB sensitivity at 8 ohms. The key difference is the number of 5.25" fiberglass woofers: the THX-502-L uses two for a 16.5" x 6.5" cutout opening, while the THX-504-L uses four for a larger 27.25" x 6.5" cutout. The THX-504-L's four-woofer array provides greater combined cone area and higher power handling at 150W continuous versus the THX-502-L's 100W, giving it more output headroom for larger rooms or higher listening levels. The THX-502-L is the better fit where wall space or cutout dimensions restrict a longer cabinet.

How does the Klipsch THX-502-L compare to the THX-8000-L?

The Klipsch THX-502-L and THX-8000-L are both THX-certified in-wall LCR speakers from the same THX Cinema Series and are timbre-matched for full-system use, but they differ in certification tier and acoustic design. The THX-502-L carries THX Select 2 certification for rooms of 2,000 cubic feet or larger and uses dual 5.25" fiberglass woofers in an infinite baffle design that leverages the wall cavity for bass loading. The THX-8000-L carries the higher THX Ultra2 certification for rooms of 3,000 cubic feet or larger and uses a single 8" aluminum woofer in a factory-sealed MDF back-can for consistent, wall-cavity-independent performance. The THX-8000-L's sealed enclosure delivers more predictable and repeatable acoustic results across variable wall construction types, while the THX-502-L's dual-woofer infinite baffle design can achieve deeper extension when installed with adequate wall cavity volume behind it.

What is THX Select 2 certification?

THX Select 2 is a home theater speaker certification developed and administered by THX Ltd., validating that a speaker meets verified output, directivity, and frequency response requirements for multi-channel reference-level audio reproduction in home theater rooms of approximately 2,000 cubic feet or larger. It occupies the mid-tier position in THX's residential certification hierarchy, above THX Select and below THX Ultra2, which is validated for rooms of 3,000 cubic feet or larger. A THX Select 2 certified speaker is the appropriate choice for standard dedicated home cinemas, large living rooms, and mid-to-large open-plan spaces where THX Ultra2 would be over-specified for the room volume.

Can the Klipsch THX-502-L be installed horizontally for center channel use?

Yes, the Klipsch THX-502-L is rated for both horizontal and vertical installation orientations and delivers consistent performance in either axis. Horizontal mounting is the standard approach for center channel positions placed below or above a projection screen or flat-panel display, where the 16.5" long dimension runs side to side. The 90° x 90° symmetrical dispersion pattern of the square Tractrix horn maintains even horizontal and vertical coverage whether the speaker is mounted vertically for left and right LCR use or rotated 90° for center channel installation, which is an intentional design requirement of the THX Select 2 LCR certification.

What amplifier is recommended for the Klipsch THX-502-L?

The Klipsch THX-502-L has a recommended amplifier power of 150W per channel at 8 ohms, with 100W continuous and 400W peak power handling. Any AV receiver or separate power amplifier capable of stable 8-ohm operation at 75W to 150W per channel is suitable for most home theater applications. For larger rooms or sustained reference-level playback, a dedicated multichannel amplifier such as the Anthem MCA series, Parasound Halo, or Emotiva XPA series will fully exploit the THX-502-L's 400W peak handling capacity. The switchable 8-ohm impedance feature also allows the THX-502-L to be used in distributed audio systems where impedance management across multiple zones or speakers on a common amplifier channel is required.

Where can I buy the Klipsch THX-502-L in Toronto or Canada?

The Klipsch THX-502-L In-Wall LCR Speaker is available at Vinyl Sound, an authorized Klipsch dealer in Toronto, Canada. Vinyl Sound carries the complete Klipsch THX Cinema Series lineup and can assist with system configuration, channel layout planning, amplifier matching, and installation accessory selection including the optional IK-502-W installation kit for new construction and retrofit home theater builds across the Toronto area and across Canada.

Is the Klipsch THX-502-L timbre matched to THX surround speakers?

Yes, the Klipsch THX-502-L is spectrally and tonally matched to all other products in the Klipsch THX Cinema Series, including the THX-8000-S surround speaker and the THX-504-L LCR speaker. This timbre matching ensures that sounds panning between the front LCR array and side or rear surround channels maintain consistent tonal character and texture without audible coloration differences between channel positions. A common full-system configuration pairs three THX-502-L units for the front LCR with THX-8000-S units for side and rear surround channels, creating a complete in-wall THX Select 2 home cinema build with uniform Klipsch THX acoustic character on every channel.