The Bowers & Wilkins CCM664 is a two-way in-ceiling speaker from the B&W Performance Series, designed for discreet integration into custom home audio and home cinema installations. It sits within the CCM6xx family alongside the CCM662, CCM663, and CCM665, offering a balance of installation simplicity and audio performance suited to multi-room audio, surround sound, and Dolby Atmos height channel duties.
Driver Configuration
The CCM664 pairs a 150mm (6in) black glass fibre cone bass/midrange driver with a 25mm (1in) soft dome tweeter. The tweeter features an adjustable tilt offset, allowing the high-frequency output to be directed towards the primary listening position even when the speaker is mounted off-axis. A three-position EQ switch provides further tuning to compensate for the acoustic effects of ceiling mounting, optimising the tonal balance for different room configurations and seating positions.
Installation
The CCM664 requires a 202mm (8in) circular cut-out and sits 133mm (5.2in) behind the ceiling surface, with just 4mm of protrusion below the finished surface. The outer frame diameter is 240mm (9.5in). An optional C6 pre-mount kit simplifies rough-in installation before the ceiling is finished, and an optional 6C back box is available for situations where rear-volume control or fire-rated enclosure is required. Sold as a pair.
| Configuration | 2-way in-ceiling system |
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| Tweeter | 1x 25mm (1in) soft dome, adjustable tilt offset |
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| Bass/Midrange Driver | 1x 150mm (6in) black glass fibre cone |
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| Frequency Range (-6dB) | 45Hz – 35kHz |
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| Sensitivity (2.83V, 1m) | 87dB |
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| Impedance (nominal/minimum) | 8Ω (4.5Ω) |
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| Recommended Amplifier Power | 25 – 130W |
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| EQ Switch | Three-position |
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| Frame Diameter | 240mm (9.5in) |
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| Cut-out Diameter | 202mm (8in) |
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| Depth Behind Surface | 133mm (5.2in) |
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| Protrusion | 4mm (0.2in) |
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| Compatible Pre-mount Kit | C6 |
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| Compatible Back Box | 6C |
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| Quantity | Pair |
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