Marine 6 is a two-way loudspeaker with a 25mm (1-in) tweeter and a 150mm (6-in) polypropylene bass/midrange driver. It boasts an IP66 rating for incredible ruggedness when installed, and is the more compact of the Marine loudspeakers, fitting into a depth of 88mm (3.5-in) with a cut-out of 200mm (7.8-in).

Marine 6 - Versatile two-way marine speakers | Bowers & Wilkins - Australia