Klipsch THX-8000-S THX Ultra2 In-Wall Surround Speaker (Each) at Vinyl Sound Toronto Canada

The THX-8000-S is a THX Ultra2 Certified 2-way in-wall surround speaker from Klipsch (Indianapolis, Indiana, USA), available at Vinyl Sound in Toronto, Canada. Part of Klipsch's THX Cinema Series, it is purpose-built for side and rear surround channel positions in dedicated home cinema installations where a flush-mount design and enveloping sound fields are the primary requirements. At its core are two 1" Titanium Dome Neodymium Tweeters arranged in a vertically-stacked diffuse Tractrix horn array, paired with an 8" Aluminum Cone Woofer in a sealed MDF enclosure, delivering a measured frequency response of 80Hz to 20kHz (+/-3dB) at 90dB sensitivity and 8 ohms. The THX-8000-S handles 100W continuous and 400W peak, mounts at 3.7" depth, and carries THX Ultra2 certification for multi-channel reference playback in rooms of 3,000 cubic feet or larger. Its proprietary Wide Dispersion Surround Technology (WDST) dual-tweeter array produces the broad, enveloping soundfield required for convincing cinematic surround reproduction from a single in-wall location, making it directly timbre-matched and system-compatible with the THX-8000-L LCR speaker.

Wide Dispersion Surround Technology and the Dual Tractrix Horn Array

The defining feature of the THX-8000-S is its patent-pending dual high-frequency driver architecture, consisting of two 1" titanium dome neodymium tweeters mounted in a vertically-stacked diffuse Tractrix horn array. This arrangement is the implementation of Klipsch's Wide Dispersion Surround Technology, or WDST, which radiates high-frequency energy across a significantly broader horizontal listening window than a single-tweeter monopole design. In a properly configured home theater, surround speakers are positioned at or behind the primary listening seats and need to create an enveloping, diffuse ambience rather than a pinpoint image. The dual Tractrix horn array of the THX-8000-S generates this wider horizontal dispersion while maintaining the efficiency and controlled frequency response characteristics of Klipsch's Tractrix geometry. At the same time, the speaker retains the ability to produce precise localization of individual surround effects when object-based audio formats such as Dolby Atmos or DTS:X assign directional information to the surround channels. The 2130Hz crossover frequency transitions the signal cleanly to the 8" aluminum cone woofer for the lower portion of the operating range.

Sealed Enclosure, Installation Flexibility and THX Ultra2 System Integration

Like the THX-8000-L LCR, the THX-8000-S uses a factory-sealed MDF back-can enclosure that makes its acoustic performance independent of wall cavity volume, construction type, and adjacent room conditions. This is an important advantage in dedicated home theater builds where consistent, predictable performance is required from every channel in the system. The speaker is certified for both horizontal and vertical installation orientations, providing flexibility in positioning the surround channels relative to the seating layout. Sure-grip cam-style mounting dogs distribute clamping force evenly around the drywall cutout perimeter for long-term installation reliability without shifting or loosening. The THX-8000-S is spectrally and tonally matched to the full Klipsch THX Cinema Series, including the THX-8000-L front LCR speaker, making it the correct surround channel partner for complete system coherence. THX Ultra2 certification confirms compatibility with the highest residential THX performance tier, validated for rooms of 3,000 cubic feet or larger.

Key Features

• THX Ultra2 Certified: The highest residential THX certification tier, verified for reference-level multi-channel audio reproduction in rooms of 3,000 cubic feet or larger, meeting the same output and directivity standards applied to professional cinema loudspeakers.
• Wide Dispersion Surround Technology (WDST): Klipsch's proprietary dual-tweeter approach broadens the horizontal dispersion of the high-frequency array beyond what a single monopole tweeter achieves, generating enveloping surround sound fields from a single in-wall installation point with more placement flexibility than conventional designs.
• Two 1" Titanium Dome Neodymium Tweeters in a Diffuse Tractrix Horn Array: Vertically-stacked high-frequency drivers in a shared Tractrix horn enclosure maintain Klipsch efficiency and tonal character while projecting sound across a wider listening area to serve multiple seats simultaneously.
• 8" Aluminum Cone Woofer: A high-output aluminum cone driver covers the 80Hz to 2130Hz crossover range in a sealed MDF enclosure, delivering the same powerful bass impact character as the THX-8000-L LCR for a consistent full-range sonic presentation across all channels.
• Sealed MDF Enclosure: The factory back-can eliminates wall cavity dependency, ensures consistent performance in any compliant installation, and reduces low-frequency sound transmission to adjacent rooms and spaces.
• Horizontal and Vertical Installation: The THX-8000-S delivers consistent performance in both mounting orientations, providing installation flexibility for side surround, rear surround, and height channel positions within the theater layout.
• Timbre Matched to Klipsch THX Cinema Series: Spectrally matched to the THX-8000-L LCR speaker and all other Klipsch THX-certified products, ensuring tonal continuity as audio pans from front LCR to surround channels throughout the listening area.
• Sure-Grip Mounting Dogs: Cam-style dogs tighten evenly against the drywall perimeter for long-term installation reliability without loosening, shifting, or creating air gaps in the mounting seal.
• Edge-to-Edge Magnetic Paintable Grille: A full-face grille secured by premium Neodymium magnets covers the entire speaker face, accepts standard interior paint to blend with any wall finish, and removes without tools for driver access.

Technical Specifications

Frequently Asked Questions

What is the Klipsch THX-8000-S?

The Klipsch THX-8000-S is a THX Ultra2 Certified 2-way in-wall surround speaker from Klipsch's THX Cinema Series, featuring two 1" titanium dome neodymium tweeters in a diffuse Tractrix horn array, an 8" aluminum cone woofer, 90dB sensitivity, and 100W continuous power handling at 8 ohms. It uses Klipsch's Wide Dispersion Surround Technology to produce broad, enveloping surround sound fields from a single in-wall flush-mount position, and is validated for reference-level playback in dedicated home cinema rooms of 3,000 cubic feet or larger.

How does the Klipsch THX-8000-S differ from the THX-8000-L?

The Klipsch THX-8000-S and THX-8000-L share the same cabinet footprint, mounting depth, frequency response range, and sealed MDF enclosure design, but differ fundamentally in their high-frequency driver configuration and intended channel role. The THX-8000-L uses a single 1" titanium dome compression driver with an 80° x 80° Tractrix horn for precise monopole directivity, making it suited to front LCR positions where pinpoint imaging and controlled dispersion are required. The THX-8000-S replaces that single driver with a dual-tweeter WDST array in a diffuse Tractrix horn configuration, producing a wider horizontal dispersion pattern suited to surround channel positions where enveloping ambience is the goal rather than point-source localization. The THX-8000-S has a slightly lower power handling of 100W continuous versus 150W for the THX-8000-L, and a crossover frequency of 2130Hz versus 2300Hz.

What is Klipsch Wide Dispersion Surround Technology (WDST)?

Wide Dispersion Surround Technology is Klipsch's proprietary dual-tweeter architecture developed specifically for surround channel speakers. WDST places two 1" titanium dome neodymium tweeters in a vertically-stacked diffuse Tractrix horn array, which radiates high-frequency energy across a broader horizontal listening window than a conventional single-tweeter monopole design. This wider dispersion creates more enveloping surround sound fields from a single speaker location, making each THX-8000-S unit effective across multiple listening seats simultaneously. WDST also gives the THX-8000-S greater placement flexibility along the side or rear walls compared to conventional surround speakers, since the broader dispersion compensates for a wider range of seating positions relative to the speaker location.

Can the Klipsch THX-8000-S be used as a monopole surround in a Dolby Atmos or DTS:X system?

Yes, the Klipsch THX-8000-S can be used as a surround speaker in Dolby Atmos and DTS:X object-based audio systems. While its WDST dual-tweeter array produces a wider dispersion pattern than a strict monopole, it is still a forward-firing in-wall speaker and functions as a monopole surround channel in any standard AV receiver surround configuration. In larger Atmos systems, the THX-8000-S handles side and rear surround channel duties while dedicated height speakers or separate ceiling-mounted units handle the elevation channels. Dolby and DTS system calibration software will account for the speaker's position and characteristics during room measurement.

How does the Klipsch THX-8000-S compare to the Triad InWall Bronze Surround and MartinLogan ElectroMotion IW?

The Klipsch THX-8000-S's THX Ultra2 certification and sealed back-can enclosure set it apart from open-back in-wall surround designs like the Triad InWall Bronze Surround, which depends on the wall cavity for its bass loading. The sealed MDF enclosure of the THX-8000-S delivers predictable, consistent performance regardless of wall construction, an advantage in custom installs with variable stud bay volumes. Compared to the MartinLogan ElectroMotion IW, the THX-8000-S uses a conventional dynamic driver approach with higher sensitivity and easier amplifier compatibility, while the ElectroMotion IW uses MartinLogan's electrostatic hybrid architecture, which offers different transparency characteristics but requires more careful amplifier matching. The THX-8000-S is the better-matched choice when pairing with Klipsch THX-8000-L LCR speakers for a timbre-coherent full-system build.

Where can I buy the Klipsch THX-8000-S in Toronto or Canada?

The Klipsch THX-8000-S In-Wall Surround Speaker is available at Vinyl Sound, an authorized Klipsch dealer in Toronto, Canada. Vinyl Sound carries the full Klipsch THX Cinema Series lineup, including the matching THX-8000-L LCR speaker, and can assist with complete home theater system design, speaker placement planning, and amplifier pairing for THX Ultra2 certified installations.

Is the Klipsch THX-8000-S compatible with the THX-8000-L LCR and what system configurations are possible?

Yes, the Klipsch THX-8000-S is spectrally and tonally matched to the THX-8000-L and all other products in the Klipsch THX Cinema Series for complete tonal coherence across every channel. A standard configuration pairs three THX-8000-L units across the front LCR with two or four THX-8000-S units for side and rear surround channels, creating a 5.1, 7.1, or larger base system. For object-based Dolby Atmos or DTS:X layouts, additional THX-8000-L units can be used for overhead or front height channels, with the THX-8000-S handling side and rear surround positions. The system can be completed with a compatible Klipsch THX-certified in-wall subwoofer for a fully flush-mounted, THX Ultra2 validated home cinema installation.

Can the grille be painted and how does the mounting system work?

Yes, the Klipsch THX-8000-S ships with an edge-to-edge paintable grille that accepts standard interior wall paint, allowing it to blend seamlessly into any wall finish without a visible bezel or frame. The grille attaches and removes using premium Neodymium magnets with no moving parts, clips, or mounting hardware. Installation uses cam-style sure-grip mounting dogs that tighten against the rear face of the drywall perimeter as they are rotated, pulling the speaker cabinet flush against the wall surface. The 19" x 10" drywall cutout is required, and the overall cabinet face measures 20.8" x 11.8" to cover the cutout opening with the grille installed.