Bowers & Wilkins: Marine 8 In-Ceiling Speaker...

...a two-way loudspeaker with a 25mm (1-in) tweeter and a 200mm (8-in) polypropylene bass/midrange driver. It boasts an IP66 rating for incredible ruggedness when installed, and although it is the larger of the Marine loudspeakers it fits into a shallow depth of 93mm with a cut-out of 249mm means Marine 8 fits almost anywhere.

B&W Marine 8 Info Sheet

B&W Marine 8 Specifics:

• 1x 25mm (1") Soft Dome Tweeter.
• 1x 200mm (8") polypropylene cone bass/midrange
• 2-way in-ceiling system
• Frequency range: 36Hz to 26kHz
• Recommended amplifier power: 20w - 80w
• Sensitivity: 90dB
• Nominal impedance:8ohms
• Frame Diameter: 292mm
• Cutout Diameter: 253mm
• Depth Behind Surface: 93mm
• Protrusion: 8mm
• Optional Pre-mount Kit: PMK C8
• Optional Back Box: 6C (not suitable for marine applications)

Need a 6" speaker - see the B&W Marine 6 - 6" Outdoor In-Ceiling Speaker Pair