Bowers & Wilkins CCM684 8" In-Ceiling Speakers
Bowers & Wilkins CCM684 8" In-Ceiling Speakers
If the ceiling has a bedroom or other living space above it, or is part of an escape route, building regulations require each speaker to have a fire hood. Hoods also cut sound leaking into the room above.
Allow about 10m per speaker for a typical run back to the amplifier (this listing is a pair). Webro 16/2 LSZH (low smoke, zero halogen) is the right cable for runs in ceilings and walls.
The Bowers & Wilkins CCM684 is an 8-inch in-ceiling speaker built for serious listeners who want full-range sound without visible hardware. Part of the Performance Series, it suits home cinemas, dedicated listening rooms and premium multi-room installations where audio quality cannot be compromised.
Why we like it
- Engineered by the same team behind B&W's studio monitors, bringing genuine hi-fi performance overhead
- Woven glass fibre bass/midrange cone delivers tight, articulate low end and natural midrange
- Pivoting soft dome tweeter lets you angle the treble towards the listening position for sharper imaging
- Three-position EQ switch tailors the top end for off-axis placement, useful in irregular room layouts
- Paintable magnetic grille blends into any ceiling for a near-invisible finish
Installation notes
The CCM684 requires a 250mm cut-out and sits within a 290mm frame, with 133mm depth behind the surface and just 4mm protrusion once fitted. QuickDogs mounting clamps allow tool-free fitting, and optional PMKC8 pre-mount kits or BB6C back boxes can be used for new-build projects. Pair with an amplifier delivering 25-130W; a Sonos Amp or WiiM Amp will comfortably drive a pair for background or home cinema use, though for full-range stereo performance a higher-powered AV receiver is recommended.
Specifications
| Drive units | 25mm soft dome tweeter, 200mm woven glass fibre bass/midrange |
| Frequency range (-6dB) | 35Hz - 35kHz |
| Recommended amplifier power | 25-130W |
| Sensitivity | 88dB (2.83V, 1m) |
| Nominal impedance | 8 ohm (min 4.5 ohm) |
| Frame diameter | 290mm |
| Cut-out diameter | 250mm |
| Depth behind surface | 133mm |
| Protrusion | 4mm |
| Warranty | 5 years |