The PORTOFINO 100 S2W is designed to bring powerful, deep bass to the most exclusive yachts, completing the refined sound signature of the PORTOFINO line. With its 10-inch flush-mount architecture, it integrates seamlessly into luxury marine environments, delivering impactful low frequencies without compromising elegance. Built with premium marine-grade materials, the PORTOFINO 100 S2W withstands the harshest elements—sun, salt, and sea—while preserving timeless beauty. Its ultra-low-profile grille blends effortlessly into yacht interiors, ensuring that the presence of the subwoofer is felt in the music, not seen in the design. For yacht owners who demand both sophistication and uncompromising audio performance, the PORTOFINO 100 S2W sets a new standard in luxury marine sound.
| Size mm (in.) | 250 (10) |
| Power Handling - Continuous W | 250 |
| Power Handling - Peak W | 500 |
| Impedance Ohm | 2 |
| Depth mm (in.) | 174 (6.85) |
| Voice Coil Type | single |
| No Filter Component | SUBWOOFER |
| Voice Coil Ø | 50 (2) |
| Magnet size D x d x h mm (in.) | 140 x 60 x 30 (5.51 x 2.36 x 1.18) |
| Weight of one component kg (lb.) | 5,1 (11.24) |
| Magnet | High density flux ferrite |
| Cone | Polypropylene with UV inhibitors |
| Xmech mm (in.) | 16.30 (0.64) |
| D mm | 210 |
| Xmax mm | 12.30 |
| Re Ohm | 2.1 |
| Fs Hz | 43 |
| Le mH | 0.46 |
| Vas I | 30.46 |
| Mms g | 75.60 |
| Cms mm/N | 0.18 |
| BL T*m | 8.30 |
| Qts | 0.60 |
| Qes | 0.63 |
| Qms | 12.30 |
| Spl dB | 88.5 |
| A | 319 mm | 12.56 in. |
| B | 271.3 mm | 10.68 in. |
| C | 174 mm | 6.85 in. |
| D | 11.6 mm | 0.46 in. |
| U | 291 mm | 0.11 in. |
| V | 5.5 mm | 0.22 in. |
The protection grade IP65 for speakers define all the Hertz Marine products as totally protected against water jets of different entities, making them highly performant in the marine environment.
According to the severe ASTM-D4329 standards for UV resistance, all the materials used for Hertz Marine products are designed to face long time exposition to UV radiations while cruising on the open sea.
To satisfy the standards required by ASTM-B117, Hertz Marine products are tested with massive salt fog spray to ensure a complete resistance to corrosion, typical of this atmospheric agent.
The Portofino Line by Hertz Marine brings sophisticated design and outstanding audio to luxury vessels. With its flush-mount architecture and marine-grade materials, Portofino delivers stunning sound while integrating seamlessly into high-end yacht environments. Offering premium quality with a class-leading price-performance ratio, Portofino redefines excellence in marine audio.
• Low-profile fine mesh grille with magnetic mounting for a clean, screw-free finish
• Coaxial speakers with concentric tweeter design for smooth, wide sound dispersion
• Minimal visual impact, maximum acoustic performance
• White marine-grade finish tailored for luxury marine interiors
• Built to pair with Hertz Marine amplifiers for dynamic, powerful playback
• Salt-fog and UV resistant (compliant with ASTM B117/D4329 standards)
• Waterproof construction with drainage and anti-resonance features
• Corrosion-proof terminals and sealed crossover networks
• Designed for infinite-baffle applications, no enclosure required
Portofino is not just audio equipment it is a fusion of Italian design, marine engineering, and sonic craftsmanship.
For those who demand elegance, performance, and resilience on the open sea.
