The Portofino 77 XW is a 7.7 inch flush mount marine coaxial speaker designed for premium marine installations that need elegant styling and strong full-range output. Its larger driver format is built to deliver greater dynamics, clear highs, and deeper bass while blending cleanly into refined yacht interiors with a low-profile grille. Rated at 100 watts continuous and 200 watts peak at 4 ohms, the Portofino 77 XW uses a polypropylene cone with UV inhibitors, a PEI dome tweeter, a ferrite woofer magnet, and a neodymium tweeter magnet for durable marine performance. Published performance includes 45 Hz to 25 kHz frequency response, 91 dB sensitivity, and 6 mm Xmax. Installation dimensions are 232 mm overall diameter, 190.5 mm cutout diameter, 108 mm mounting depth, 9 mm grille protrusion, 208 mm mounting hole center diameter, and 4.5 mm mounting hole diameter. Spec Table: Model: Portofino 77 XW Component: Flush Mount Coax Size: 195 mm, 7.7 in. Power Handling Continuous: 100 W Power Handling Peak: 200 W Impedance: 4 ohm Depth: 108 mm, 4.25 in. Frequency Response: 45 Hz to 25 kHz Tweeter Diaphragm: 36 mm, 1.4 in. Woofer Voice Coil Diameter: 32 mm, 1.26 in. Tweeter Voice Coil Diameter: 20 mm, 0.8 in. Sensitivity: 91 dB Xmax: 6 mm Overall Diameter: 232 mm, 9.13 in. Cutout Diameter: 190.5 mm, 6.73 in. Mounting Depth: 108 mm, 4.25 in. Grille Protrusion: 9 mm, 0.35 in. Mounting Hole Center Diameter: 208 mm, 8.19 in. Mounting Hole Diameter: 4.5 mm, 0.18 in.