Hertz PORTOFINO 77 X 7.7" Flush-Mount Coaxial Marine Speakers - White - Pair

The Hertz PORTOFINO 77 X marine coaxial speakers combine refined styling with detailed, full-range sound for premium marine audio systems. Featuring a 7.7-inch woofer, a concentric tweeter design, and 100W RMS power handling, these speakers deliver balanced audio with a frequency response of 45 Hz25 kHz. Their flush-mount construction creates a streamlined appearance that blends neatly into your vessel. Finished in White, the PORTOFINO77XW features a magnetic fine mesh grille for a clean, screw-free look. Built for marine environments, the speakers offer IP65 protection, UV resistance, and salt fog resistance, making them a practical choice for installations exposed to sun, moisture, and salt air.

The low-profile flush-mount design helps the speakers integrate seamlessly into your vessels interior, while the magnetic grille maintains a clean, uncluttered finish.

7.7-inch flush-mount coaxial speakers

White finish (PORTOFINO77XW)

Magnetic fine mesh grille

Clean, screw-free styling

With 100W RMS power handling and a 45 Hz25 kHz frequency response, the PORTOFINO 77 X is designed to reproduce detailed highs and substantial low-frequency output. Its coaxial driver arrangement helps provide even sound dispersion throughout the listening area.

100W RMS power handling

200W peak power handling

45 Hz25 kHz frequency response

4-ohm impedance

91 dB SPL sensitivity

7.7-inch (195 mm) woofer

36 mm tweeter diaphragm

The concentric tweeter layout supports balanced sound dispersion, while the woofer and tweeter work together to provide a cohesive listening experience. The UV-resistant polypropylene cone and dedicated marine construction help the speakers suit demanding onboard applications.

Concentric coaxial driver design

UV-resistant polypropylene cone

Neodymium tweeter magnet

High-density ferrite woofer magnet

Designed for infinite-baffle applications

The PORTOFINO 77 X is designed to withstand common marine environmental challenges. Its protection rating and resistance testing help support reliable use in installations exposed to water spray, ultraviolet radiation, and salt fog.

IP65 protection rating

UV resistance compliant with ASTM-D4329

Salt fog resistance tested to ASTM-B117

Corrosion-resistant materials and sealed components

7.7-inch flush-mount coaxial marine speakers

Sold as a pair

100W RMS / 200W peak power handling

45 Hz25 kHz frequency response

4-ohm impedance

91 dB SPL sensitivity

Concentric tweeter layout for sound dispersion

Magnetic fine mesh grille with screw-free styling

White finish

IP65-rated marine protection

ASTM-D4329 UV resistance

ASTM-B117 salt fog resistance

Infinite-baffle application design

Model: PORTOFINO77XW

Speaker Size: 7.7 inches (195 mm)

Speaker Type: Coaxial marine speakers

Quantity: Pair

RMS Power Handling: 100W

Peak Power Handling: 200W

Frequency Response: 45 Hz25 kHz

Impedance: 4 ohms

Sensitivity: 91 dB SPL

Tweeter Diaphragm: 36 mm

Woofer Cone Material: UV-resistant polypropylene

Tweeter Magnet: Neodymium

Woofer Magnet: High-density ferrite

Protection Rating: IP65

UV Resistance: ASTM-D4329

Salt Fog Resistance: ASTM-B117

Installation Type: Flush-mount, infinite-baffle

Colour: White