The Klipsch THX-8000-S is a THX Ultra2 Certified in-wall surround speaker engineered for cinematic home theater sound without visible floor-standing speakers. Dual 1" titanium dome tweeters in a diffuse Tractrix® horn array and an 8" aluminum woofer deliver detailed effects and powerful impact. WDST wide dispersion helps create an enveloping surround field with flexible placement for custom installs. A sealed enclosure and paintable magnetic edge-to-edge grille make it a premium hidden speaker solution for high-performance theater rooms.
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THX-8000-S In-Wall Speaker

The Klipsch THX-8000-S is a THX Ultra2 Certified in-wall surround speaker built to deliver true cinema-style immersion without taking up any floor space. Designed for premium custom installations, it uses Klipsch Wide Dispersion Surround Technology (WDST) to create an enveloping sound field with precise effects placement, even when speaker placement isn’t perfect. A diffuse Tractrix® horn array with dual 1" titanium dome neodymium tweeters handles detailed, lifelike surround effects, while an 8" aluminum cone woofer brings the punch and impact modern soundtracks demand.

The sealed, fully enclosed design helps maintain consistent performance, and the edge-to-edge, flat magnetic grille is paintable to blend seamlessly into any room. Install it vertically or horizontally for maximum layout flexibility while keeping your home theater clean, discreet, and uncompromising. The Klipsch THX-8000-L is part of ListenUp's Klipsch In-Wall Speakers Collection.

What It's Good At:

• Creating immersive surround effects with wide, room-filling dispersion (WDST)
• Delivering THX Ultra2 cinema performance for high-impact home theater rooms
• Producing crisp detail with a dual-tweeter Tractrix® horn array for lifelike imaging
• Adding tight, dynamic midbass with an 8" aluminum woofer
• Blending into décor with a flat, paintable, magnetic edge-to-edge grille
• Offering flexible placement with vertical or horizontal installation reliability

THX-8000-S In-Wall Speaker Full Specifications:

• Model: THX-8000-S
• Category: In-Wall Speaker (Surround)
• MSRP (as listed): $1,899.99
• System Type: 2-way in-wall
• THX Certification: THX® Ultra2 Certified
• Frequency Response: 80Hz–20kHz ±3dB
• Power Handling (Continuous/Peak): 100W / 400W
• Sensitivity: 90dB (also listed as 90dB @ 2.83V/1 meter)
• Nominal Impedance: 8 ohms (also listed as 8 ohms compatible)
• Crossover Frequency: 2130Hz
• High-Frequency Driver: Two 1" (2.5cm) titanium dome neodymium tweeters in a diffuse Tractrix® horn array
• Low-Frequency Driver: 8" (20cm) aluminum cone woofer
• Enclosure Type: Sealed enclosure (also described as a fully enclosed back box)
• Hole Dimensions (HxW): 19" (48.3cm) H x 10" (25.4cm) W
• Cutout Dimensions (HxW): 19.13" (485.90mm) H x 10.12" (257.05mm) W
• Overall Dimensions (HxW): 20.63" (524mm / 52.4cm) H x 11.63" (295.40mm / 29.54cm) W (spec sheet also lists 20.8" (52.7cm) H x 11.8" (29.8cm) W)
• Mounting Depth: 3.88" (98.55mm / 9.85cm) (spec sheet also lists 3.7" (9.4cm))
• Product Weight: 17.5 lbs (7.9kg)
• Shipping Quantity: Single
• Shipping Weight: 18.9 lbs (8.57 kg)
• Finish (as listed): White with brushed aluminum facia (also listed as white paintable grille; flat/magnetic/paintable grille)
• Grille Style: Edge-to-edge, flat, magnetic, paintable
• Installation Kit: IK-802-W (sold separately)
• Part Number: 1066110
• Compliance Notice (as shown on product page): Proposition 65 warning applies

Klipsch THX-8000-S Q&A:

What is the Klipsch THX-8000-S designed for?

It’s built as a high-performance in-wall surround speaker for premium home theaters, delivering THX-certified cinema impact while staying visually hidden.

What does THX Ultra2 Certification mean for this speaker?

THX Ultra2 Certification indicates it’s engineered to meet demanding cinema-style performance targets—high output, controlled response, and consistent surround presentation in larger home theater spaces.

What is WDST and why does it matter for surround sound?

Wide Dispersion Surround Technology (WDST) is designed to spread surround effects broadly and evenly, helping create a more immersive sound field and improving flexibility when speaker placement options are limited.

Can the THX-8000-S be installed horizontally or vertically?

Yes. It’s designed to deliver reliable performance in either orientation, supporting more layout options for custom installs.

Does this in-wall speaker include its own enclosure/back box?

It uses a sealed, fully enclosed design, helping maintain consistent sound and reducing sensitivity to wall cavity variations.

Is the grille paintable and easy to remove?

Yes. The flat, edge-to-edge grille is paintable and uses magnetic attachment, making it easy to remove for painting and reinstall for a clean, flush look.

What amplifier power is appropriate for the THX-8000-S?

It’s rated at 100W continuous / 400W peak and 8 ohms, so it pairs well with quality AV receivers or external amplification that can supply clean power within those ranges.

What should installers know before cutting the wall?

Use the cutout size (19.13" x 10.12") and confirm mounting depth (up to ~3.88") to ensure the wall location supports proper fit and clean installation.

Klipsch THX-8000-S Downloads:

Klipsch THX-8000-S Specification Sheet