Against the elements Whether it gets soaked, sprayed with salt-water or hosed down, Marine 6 is designed to keep on bringing you superb sound. Built tough to sound strong With a marine-grade stainless steel chassis and grille, and polypropylene drivers, Marine 6 sounds great even in a storm. Specifications Description: 2-way system Drive units: 1x Ø25mm (1-in) soft dome tweeter, 1x Ø150mm (6-in) polypropylene, cone bass/midrange Frequency range: 43Hz – 26kHz Recommended amplifier power: 20W – 80W Sensitivity: 88dB (2.83V, 1m) Outer diameter: Ø243mm (9.6 in) Cut-out diameter: Ø202mm (8 in) Depth behind surface: 88mm (3.5 in) Protrusion: 8mm (0.3 in) Nominal impedance: 8Ω Neto weight: 1.4kg Pre-mount kit: C6 Back box: 6C (not suitable for marine applications) IP66 raiting This information is intended as a guide only and reflects the current specification at the time of print. We reserve the right to make changes to the specifications. Package Contents: Bowers & Wilkins Two-Way Speaker Marine 6, White, 2Pcs, Spiker wires, grille, Manual.