Hertz Marine Portofino 77 XW 7.7 Inch Flush Mount Coaxial Speakers 100w RMS
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The Hertz Marine Portofino 77 XW is a 7.7-inch (195 mm) 2-way flush-mount coaxial marine speaker rated at 100 W RMS / 200 W peak, from Hertz's Marine Portofino range. It features an ultra-low-profile fine mesh magnetic grille and marine-grade construction.
This listing is the Portofino 77 XW. The Marine Portofino range is also available as the Portofino 77 XC and the smaller Portofino 65 XC.
Key specifications
- Size: 195 mm (7.7 in)
- Type: 2-way flush-mount coaxial
- Power handling: 100 W continuous, 200 W peak
- Impedance: 4 ohms
- Mounting depth: 108 mm (4.25 in)
- Tweeter: 36 mm (1.4 in) PEI dome, neodymium magnet
- Woofer voice coil: 32 mm (1.26 in)
- Frequency response: 45 Hz to 25 kHz
- Grille: fine mesh magnetic, tool-free attachment
Hertz Marine Portofino 77 XW
195 (7.7) mm (in.) | 108 (4.25) mm (in.) | Flush-mount Coax | 200 W | 4 Ohm
The PORTOFINO 77 XW is built for luxury marine installations. Its 7.7-inch drivers deliver strong dynamics and extended bass, while the flush-mount design and ultra-low-profile grille keep the installation discreet. Marine-grade materials provide resistance to UV, salt, and moisture.
Features
- Italian-inspired design suited to luxury yacht interiors.
- Flush-mount architecture with an ultra-low-profile footprint.
- Fine mesh magnetic grille with tool-free attachment.
- Marine-grade materials resistant to UV, salt, and moisture.
- 2-way coaxial configuration delivering clarity across the frequency range.
Explore the full range in Hertz Marine Speakers & Subwoofers.
Specification
| Component | FLUSH-MOUNT COAX |
|---|---|
| Size mm (in.) | 195 (7.7) |
| Power Handling | - Continuous W 100 |
| Power Handling | - Peak W 200 |
| Impedance | Ohm 4 |
| Depth mm (in.) | 108 (4.25) |
| Tweeter diaphragm mm (in.) | 36 (1.4) |
| Woofer Voice Coil Ø mm (in.) | 32 (1.26) |
| Tweeter Voice Coil Ø mm (in.) | 20 (0.8) |
| Frequency Response | Hz 45 ÷ 25k |
| Woofer Magnet size D x d x h mm (in.) | 90 x 40 x 20 (3.54 x 1.57 x 0.79) |
| Tweeter Magnet size D x h mm (in.) | 19,7 x 3 (0.78 x 0.12) |
| Weight | of one speaker kg (lb.) 1 (2.2) |
| Woofer Magnet | High density flux ferrite |
| Tweeter Magnet | Neodymium |
| Cone | Polypropylene with UV inhibitors |
| Dome | PEI |
| Xmech mm (in.) | ±6,65 (0.26) |
What's Included
- PORTOFINO 77 XW
Hertz
About the Hertz PORTOFINO 77 XW
From our tech experts at CEN
The Hertz Marine Portofino 77 XW is a 7.7-inch (195 mm) 2-way flush-mount coaxial marine speaker rated at 100W RMS and 200W peak, from Hertz's Marine Portofino range. It has a 108mm mounting depth and a 36mm neodymium-magnet PEI dome tweeter. The polypropylene cone includes UV inhibitors, and the build resists salt, moisture and sunlight.
Who it suits
Suited to boat and yacht owners who want a discreet, weather-resistant speaker with genuine audio quality. The ultra-low-profile magnetic grille attaches without tools, making it a practical choice for luxury vessel interiors. For added low-end on the water, pair with the Hertz PowerSports HMP 1D marine mono amplifier.
Our tech experts advise
Confirm at least 108mm of clear mounting depth before purchasing. The 4-ohm impedance is compatible with most marine head units and amplifiers. Fitting costs vary per vessel; contact us to discuss installation. Browse the full Hertz range for compatible marine audio components.
Explore the full Hertz range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Hertz
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Frequently Asked Questions
Q: What makes marine speakers different from car speakers?
A: Marine speakers are built with UV-stable, water-resistant cones, grilles and hardware designed for open-air and wet environments. They are the right choice for boats, jet skis, hot tubs and outdoor installs.
Q: Are these speakers fully waterproof?
A: Marine speakers are water-resistant to marine ratings rather than submersible. The IP rating, where provided, is listed in the Specification tab.
Q: Do I need a marine amplifier as well?
A: For best results, yes. Marine amplifiers carry conformal-coated boards that resist moisture and salt air. Match the amplifier to the RMS rating in the Specification tab as you would with any system.
Q: Will these work outside of marine use?
A: Yes. Marine speakers are popular for motorcycles, quads, hot tubs, garden bars and anywhere the weather reaches. Their durability makes them a strong outdoor choice.
Q: What size is the Portofino 77 XW?
A: It is a 7.7-inch speaker, measuring 195 mm, with a mounting depth of 108 mm (4.25 in).
Q: How much power can the Portofino 77 XW handle?
A: It is rated at 100 W continuous and 200 W peak at 4 ohms.
Q: How is the Portofino 77 XW grille attached?
A: It uses a fine mesh magnetic grille with secure, tool-free attachment.
