Marine 8 is 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 (3.7-in) with a cut-out of 249mm (9.8-in).