Klipsch KL-7800-THX — An 8" In-Wall LCR With No Floor Footprint
What makes the Klipsch KL-7800-THX distinct in this THX Ultra2 lineup is its 8" woofer in a fully in-wall design — the same driver size and output capability you’d expect from a floorstanding tower, built into an enclosure that mounts flush inside the wall for left, center, or right channel use.
An Integrated Back Box for Predictable Response
The KL-7800-THX includes its own integrated back-box enclosure, so its bass response is predictable and repeatable regardless of what’s on the other side of the wall — unlike some in-wall speakers that rely on the wall cavity itself as the enclosure. That also means it can be installed into new or existing construction.
Aluminum Woofer, Titanium Compression Tweeter
An 8" aluminum cone woofer handles bass and midrange, and a 1" titanium dome compression driver is mated to a square Tractrix® horn for the efficient, low-distortion high end Klipsch horn designs are known for. THX® Ultra2 certification means it’s rated to hold up at reference playback levels in rooms of 3,000 cubic feet or larger.
Pairs With the Rest of the THX Ultra2 In-Wall System
Combine the KL-7800-THX with Klipsch’s KS-7800-THX in-wall surround for a fully flush-mounted THX Ultra2 system, or mix it with Klipsch’s traditional box-enclosure THX Ultra2 models where a floor or shelf-mounted channel makes more sense.
Let’s Design Your Ottawa In-Wall System
In-wall THX Ultra2 speakers like the KL-7800-THX are almost always specified as part of a larger custom install, so I’d invite you to book a design and installation consultation with our Ottawa team before any walls are opened up.
Product Highlights
- 8" aluminum cone woofer
- 1" titanium dome compression driver mated to a square Tractrix® horn
- Integrated back-box enclosure
- Frequency response: 80Hz–20kHz (±3dB)
- Sensitivity: 91 dB @ 2.83V/1m
- Power handling: 150W continuous / 600W peak
- Impedance: 8 ohms
- Cutout dimensions: approximately 19" x 10"
- Paintable grille
- Sure-grip mounting dogs
- THX® Ultra2 certified
What's in the Box
- 1 in-wall loudspeaker with integrated back box
- Paintable grille
- Cutout template
- Mounting hardware (sure-grip dogs)
- Owner's manual
Frequently Asked Questions
Can the KL-7800-THX be installed in an existing finished wall?
Yes — its integrated back box means it does not rely on the wall cavity for its enclosure, so it can go into new construction or be retrofitted into an existing wall.
What surround speaker is designed to pair with the KL-7800-THX?
Klipsch’s KS-7800-THX in-wall surround is the matched companion for a fully flush-mounted THX Ultra2 in-wall system — ask us about pairing them during your consultation.
