About the Klipsch CDT-3800-C II
Treat yourself to top-notch sound with a speaker that blends seamlessly into your home's décor. The Klipsch® CDT-3800-C-II installs in your ceiling, so it won't take up one inch of floor space. And its high-tech design and solid construction make it a great choice for movie and music lovers alike. You can use multiple '3800-C-IIs for surround sound in an all-Klipsch home theater, or install them in pairs for stereo listening with your multi-room audio system. Either way, you'll experience accurate Klipsch sound without the clutter of conventional speakers.
Ready, aim, music!
The '3800-C-II's 1" aluminum tweeter tweeter gives you 100-degree dispersion, and it swivels, so you can aim the sound precisely where you need it to go. You can even rotate the Cerametallic™ woofer a full 360 degrees and tilt it up to 15 degrees in any direction. This flexibility gives you full, detailed sound no matter where you place the speaker. Plus, a tweeter attenuation switch lets you tailor the sound to suit your personal taste and room's acoustics.
Horn technology for room-filling sound
Because high-frequency sounds are more directional than bass frequencies, it's especially important to target them right toward your ears. Klipsch places their tweeter inside a flared opening, known as a "horn," which disperses the highs evenly across your listening area. This design brings out details in everything you listen to, while reducing reflections that can color the sound. The horn also improves dynamics and efficiency, for powerful, "front row" sound that remains crystal-clear at all volume levels.
Keeping a low profile
The '3800-C-II stays inconspicuous with its SlimTrim™ grille. The visible frame size is reduced by 90% and grille depth is reduced by 80% over previous designs, for a nearly flush finish that blends in beautifully. The paintable aluminum, magnetic grille attaches securely with ease to virtually eliminate resonant distortion.
An optional in-ceiling bracket is recommended for installing the CDT-3800-C-II in new construction.
Got wire?
Most speakers don't include any. Learn more about in-wall wiring.
Shop our selection of in-wall speaker wire.
Product highlights:
- 1" aluminum dome tweeter with swiveling Tractrix® horn
- swivelling 8" IMG woofer
- power handling: up to 50 watts RMS (200 watts peak)
- frequency response 56-23,000 Hz (±3dB)
- sensitivity 92 dB
- 8-ohm impedance
- paintable SlimTrim magnetic grille
- treble attenuation switch
- cutout dimensions: 9-13/16" diameter
- mounting depth: 5-1/8"
- warranty: lifetime
- Our 60-day money-back guarantee
Priced each
- MFR # 1014142
What's in the box:
Klipsch CDT-3800-C II owner's manual
- Ceiling-mount speaker
- White metal mesh grille
- Cardboard template
- Owner's Manual (En/Fr/Sp)
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More details on the Klipsch CDT-3800-C II

Features & specs
Features | ||
---|---|---|
Quantity in Package | Single | |
Tweeter | Tractrix Horn | |
Aimable Tweeter | Yes | |
Woofer Composition | IMG | |
Woofer Surround | Rubber | |
Connector Type | Spring clip | |
Bi-Amp Inputs | No | |
Built-in Back-box | No | |
Moisture Resistance | ||
Indoor (Moisture-resistant) | No | |
Outdoor (Partial Exposure) | No | |
Outdoor (Full Exposure) | No | |
Specs | ||
Tweeter Size | 1 | |
Midrange Size | N/A | |
Speaker Shape | Round | |
Woofer Size | 8 | |
Cutout Width | 9.8125 | |
Cutout Height | 9.8125 | |
Mounting Depth | 5.125 | |
Power Range (Watts) | up to 50 | |
Sensitivity | 92 dB | |
Impedance (Ohms) | 8 | |
Frequency Response | 56-23kHz | |
Parts Warranty | Ltd. Lifetime | |
Labor Warranty | Ltd. Lifetime |
Product Research
Features
Controlled Dispersion Technology (CDT): The Klipsch CDT-3800-C II in-ceiling speaker features a patent-pending gimbal mechanism, known as Controlled Dispersion Technology (CDT). The tweeter and woofer are independently adjustable, allowing both the high and low frequencies to be directed toward the listening area.
High Efficiency: The high-efficiency design of the Klipsch in-ceiling speakers allows you to get much more output than most in-wall and in-ceiling speakers. Due to the long speaker wire runs that are common in whole-house audio systems, the power coming from the amplifier is significantly reduced by the time it reaches the speakers. The 92dB efficiency of this speaker means it will play much louder at low power than other less-efficient speakers.
Drivers: The Klipsch CDT-3800-C II uses a high-quality 1" aluminum dome compression driver (tweeter) mated to an exclusive Tractrix Horn, combined with a 8" IMG woofer in a 2-way design.
- Tweeter: There is a 1" aluminum dome compression tweeter mated to a swiveling 100° Tractrix Horn. The swiveling horn design dramatically increases efficiency by enabling the speaker to produce more output using less energy. The horn-loaded tweeter allows you to point the sound to a specific location, and has more controlled directivity than a conventional dome tweeter.
- Woofer: The 8" copper-colored IMG (injection-molded graphite) woofer can rotate a full 360°, and then shift 15° in any direction. The solid Injection Molded Graphite woofer cone has been strengthened for even more accurate bass reproduction.
Note: The manufacturer has specified the maximum power handling of this speaker as 50 watts RMS (200 W Peak). Klipsch has also published a recommended amplifier power specification as 100 watts.
Speaker Terminals: The speaker has a pair of spring clips that can accept up to 12-gauge wire or pin connectors.
Tweeter Attenuation Switch: If the speaker is installed in an acoustically bright room, such as a bathroom or a kitchen, you can attenuate the tweeter by -3dB, using the Tweeter Attenuation Switch, located on the front of the speaker.
ABS Basket/Frame: The CDT-3800-C II has a sturdy ABS basket and frame. The frame can be painted to match any decor.
SlimTrim Magnetic Grille: With an all new grille, the visible frame size is reduced by 90% and grille depth is reduced by 80% over the previous design, for a more edge-to-edge consistent look that blends in with the wall more attractively. The new aluminum, paintable, magnetic grille attaches tightly and securely with ease to virtually eliminate resonant distortion.
Installation: The speaker can be installed in new or existing construction. It requires a cutout diameter of 9.8125". For new construction, purchase of the IK-800-C installation kit (714IK800C, sold separately) is highly recommended. For existing construction, the speaker should be installed in drywall at least 3/8" thick. It can also be installed in a drop ceiling (2' x 2' or 2' x 4' ceiling tiles only). In both cases, to maximize the acoustic performance of the in-ceiling speakers, Klipsch recommends you replace the original mounting panel with 1/2" or 3/4" plywood or MDF. A cardboard template is included to assist you in making the cutout.
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Customer Q&A
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I couldn't be happier with how these look and sound in our newly finished basement. I installed a pair of these in each bedroom, a pair in my workshop and 3 in the exercise room (L-R-C). I was a little concerned at first that they might not have enough bottom end. But, they sound fantastic.
Andrew from Rockford, IL