Klipsch CDT-3650-C II In-Ceiling Speaker
- 6.5 inch woofer, 1 inch tweeter
- 100 watts maximum power, 8 ohm
- 63 hertz frequency response
- Aluminum frame, white
- Speaker wire connection
- Sold each, not a pair
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A single mid-size in-ceiling speaker for television rooms and general home audio. Wireless and battery entries in the listing do not apply to a wired ceiling speaker.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0074XI30KModel: CDT-3650-C IICategory: Ceiling & In-Wall Speakers
Overview
Dropping into a ceiling opening, this speaker brings a mid-size woofer and a small tweeter to a flush mount. The connection is speaker wire, and the specific use is listed as for televisions.
The reason to buy is a compact flush driver with a moderate power rating for TV rooms. The limit is data quality: the listing names Wi-Fi, Ethernet and a battery life, which do not match a passive speaker, and warranty terms point to the owner's manual.
Who it's for
A room with speaker wire already run to an amplifier or receiver suits this speaker. Skip it if you expect wireless streaming, or if you need two speakers in a single order.
Pros and cons
- Compact flush mount
- Wired speaker connection
- Common driver size
- Wireless entries are wrong
- Warranty terms not stated
- Cutout size not listed
Performance notes
The woofer carries bass and mids and the tweeter handles highs, with the ceiling cavity acting as the enclosure. An amplifier supplies the power over speaker wire. Bass depends on the room above.
Where it stands among ceiling & in-wall speakers
- #8 most-searched brand and model of the 16 ceiling & in-wall speakers lines we track (by search demand, not sales).
From the specs of the 15 ceiling & in-wall speakers we list; not a test result.
Specifications
| Brand | Klipsch |
|---|---|
| Model | CDT-3650-C II |
| Dimensions & fit | |
| Speaker size | 6.5 inches |
| Woofer diameter | 6.5 inches |
| Tweeter diameter | 1 inches |
| Item dimensions d x w x h | 4.5"D x 9.5"W x 9.5"H |
| Item weight | 2.45 kg |
| Capacity & performance | |
| Speaker maximum output power | 100 watts |
| Construction & materials | |
| Color | White |
| Enclosure material | Aluminum |
| Compatibility & installation | |
| Mounting type | Ceiling Mount |
| Connectivity protocol | Speaker Wire |
| Warranty & support | |
| Warranty description | See Owner's Manual |
| Other details | |
| Impedance | 8 ohm |
| Frequency response | 63 hertz |
| Number of items | 1 |
Frequently asked questions
Does the Klipsch CDT-3650-C II work over Wi-Fi?
No. The listing names Wi-Fi and Ethernet, but the connection protocol is speaker wire, so it is a passive speaker.
Is the CDT-3650-C II a pair?
No. The title says each.
What size is it?
The listing gives 4.5 inches deep and 9.5 inches wide and high, at 2.45 kg.