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

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

Built for refined marine environments, the Hertz PORTOFINO 77 X blends elegant design with serious acoustic performance, giving yacht interiors a clean, high-end audio upgrade without visual clutter.

Elegant Marine Design

Designed with luxury in mind, this speaker integrates a flush-mount coaxial structure that disappears neatly into yacht interiors. The ultra-low-profile grille keeps everything visually minimal, almost like the sound is coming directly from the vessel itself rather than a separate component.

Available in white (PORTOFINO77XW) or black (PORTOFINO77XC), it adapts easily to different interior styles while maintaining a premium, understated presence. The larger 7.7-inch driver adds more presence and depth, filling open marine spaces with a fuller soundstage.

Power and Sonic Clarity

Strong performance defines the Hertz PORTOFINO 77 X, with 100W continuous power handling and up to 200W peak output. That means it stays controlled and clean even when pushed, delivering consistent sound across varying listening conditions at sea.

With a 4-ohm impedance and frequency response from 45 Hz to 25 kHz, it balances deep bass with crisp highs. The result is a sound profile that feels wide, detailed, and naturally immersive rather than forced or sharp.

Precision Acoustic Engineering

• Flush-mount coaxial design for smooth, aligned sound output
• 7.7-inch driver tuned for depth and dynamic range
• Concentric tweeter layout for balanced sound dispersion
• UV-resistant polypropylene cone for stable acoustic performance
• 91 dB SPL sensitivity for efficient and clear sound projection

The coaxial design pairs a 36 mm tweeter diaphragm with a carefully tuned woofer system, keeping highs crisp and lows controlled. Sound spreads evenly across the space, creating a natural, immersive listening experience without harsh directionality.

Built for Marine Durability

Engineered for real marine conditions, the Hertz PORTOFINO 77 X carries IP65 certification, making it fully protected against water jets. It also meets ASTM-D4329 UV resistance standards and ASTM-B117 salt fog testing requirements, ensuring long-term resilience in harsh environments.

Corrosion-resistant materials and sealed components further strengthen its reliability, so exposure to sun, salt, and moisture doesn’t compromise performance over time.

Seamless Yacht Integration

Luxury yacht interiors benefit from its minimalist Italian-inspired design, which focuses on blending in rather than standing out. The magnetic grille system allows a clean, flush finish that keeps the aesthetic uninterrupted.

Because it is designed for infinite-baffle applications, no enclosure is required, making it easier to integrate into a wide range of marine setups while maintaining consistent sound quality.

Key Technical Snapshot

At its core, the Hertz PORTOFINO 77 X features a 7.7-inch (195 mm) driver with a depth of 108 mm, offering a compact yet powerful structure. The combination of a neodymium tweeter magnet and high-density ferrite woofer magnet helps maintain control and clarity across the frequency range.

Electro-acoustic tuning supports balanced output, with a 60 Hz resonance point and 91 dB sensitivity ensuring efficient sound reproduction even in open marine environments.

Immersive Listening Experience

Sound dispersion is wide and natural thanks to the concentric tweeter design, which helps maintain consistent audio coverage throughout the listening area. Instead of focusing sound in one direction, it spreads evenly for a more immersive feel.

The result is a listening experience that feels open and balanced, whether you’re relaxing at anchor or moving through open water.

Final Impressions

Luxury marine audio reaches a refined balance of performance and design here, combining durability, clarity, and elegance in one cohesive system. Every detail is tuned for life at sea, from weather resistance to acoustic precision, creating a speaker that feels purpose-built for high-end marine environments.

FAQs

1. What size is the Hertz PORTOFINO 77 X? It comes in a 7.7-inch (195 mm) flush-mount coaxial design, giving you a larger driver setup that still sits clean and discreet in your marine space.
2. How much power can it handle? It handles 100W continuous power with peaks up to 200W, delivering solid output that stays smooth and controlled even when you turn it up.
3. Is it suitable for marine environments? Absolutely—it’s IP65 certified and tested against UV exposure and salt fog, so it’s built to keep performing even in tough sea conditions.
4. What type of sound does it produce? Expect a rich, balanced sound profile that stretches from deep 45 Hz lows to crisp 25 kHz highs, giving your music space, clarity, and depth.
5. What materials are used in its build? It’s made with a UV-resistant polypropylene cone and marine-grade components, built to stay strong, stable, and reliable over time on the water.