Hertz PORTOFINO 100 S4 10" 4-Ohm SVC Marine Subwoofer - Each

Hertz PORTOFINO 100 S4 10" 4-Ohm SVC Marine Subwoofer - Each

The Hertz PORTOFINO 100 S4 delivers deep, refined bass designed specifically for luxury marine environments. Built for premium yachts and high-end vessels, this 10-inch marine subwoofer combines elegant Italian styling with powerful low-frequency performance.

Available in both black and white finishes, the PORTOFINO 100 S4 blends seamlessly into modern marine interiors while delivering rich, controlled bass out on the open water.

Premium Marine Bass Performance

The Hertz PORTOFINO 100 S4 is engineered to produce deep and impactful low frequencies that bring added depth and energy to every playlist. With 250 watts RMS and 500 watts peak power handling, it delivers strong, commanding bass that feels powerful without overpowering the rest of the audio system.

Its 10-inch polypropylene cone is designed for clean and controlled bass response in open-air marine environments where clarity matters just as much as output. Whether you're relaxing at the marina or cruising offshore, the low end remains smooth, balanced, and impressively refined.

Designed for Luxury Yachts

The Hertz PORTOFINO 100 S4 features an ultra-low-profile flush-mount design that integrates naturally into premium yacht interiors. Rather than distracting from the overall aesthetic, it enhances the space with a clean and sophisticated appearance tailored for luxury marine environments.

The fine mesh magnetic grille creates a sleek, screw-free finish while allowing simple tool-free attachment. Every detail is designed to maintain a polished and modern appearance from every angle.

Black and White Finish Options

The PORTOFINO100S4C version comes in a sophisticated black finish designed to complement darker or high-contrast marine interiors with a bold and refined look.

The PORTOFINO100S4W version features a clean white marine-grade finish that pairs perfectly with brighter yacht environments and contemporary styling themes.

Built for Marine Conditions

The Hertz PORTOFINO 100 S4 is built using premium marine-grade materials specifically engineered to handle life on the water. Salt, UV exposure, moisture, and water spray are all part of the demanding conditions this subwoofer is designed to face.

Its IP65 certification means it is protected against water jets, helping maintain reliable and consistent performance even in harsh marine environments.

UV and Salt Resistant Construction

All materials used in the Hertz PORTOFINO 100 S4 are engineered to resist long-term UV exposure according to strict ASTM-D4329 standards, helping preserve both appearance and performance over time.

The subwoofer is also salt fog tested to ASTM-B117 standards for corrosion resistance, ensuring dependable durability in demanding offshore conditions.

Marine-Grade Components

The Hertz PORTOFINO 100 S4 uses a polypropylene cone with UV inhibitors for long-lasting durability and consistent low-frequency performance in marine environments.

A high-density flux ferrite magnet and 50 mm single voice coil help deliver smooth, reliable bass response while maintaining flexible system compatibility through its 4 ohm configuration.

Flush-Mount Marine Integration

The flush-mount architecture helps the Hertz PORTOFINO 100 S4 maintain a minimal visual footprint while maximizing acoustic performance throughout the vessel.

Its low-profile styling feels perfectly at home in luxury marine spaces, blending into the environment with the same subtle elegance as premium yacht lighting or hidden architectural accents.

Designed for Infinite-Baffle Applications

The Hertz PORTOFINO 100 S4 is designed for infinite-baffle applications, eliminating the need for a dedicated enclosure while simplifying system integration.

This approach helps preserve valuable onboard space while still delivering deep, controlled bass performance throughout the listening area.

Optimized for Marine Audio Systems

The Hertz PORTOFINO 100 S4 is designed to pair seamlessly with Hertz Marine amplifiers for dynamic, controlled, and immersive playback on the water.

Its 4 ohm single voice coil design allows flexible system matching while maintaining strong and consistent low-frequency output across a wide range of marine audio setups.

Portofino Marine Audio Philosophy

The Portofino line combines sophisticated Italian design with advanced marine engineering and premium sound performance created specifically for luxury vessels.

The Hertz PORTOFINO 100 S4 reflects that philosophy through its elegant styling, durable marine-grade construction, and refined bass response tailored for high-end marine audio applications.

Technical Specifications

• Size: 250 mm (10")
• Power Handling (Continuous): 250 W
• Peak Power: 500 W
• Impedance: 4 Ohm
• Voice Coil Type: Single Voice Coil
• Voice Coil Diameter: 50 mm (2")
• Mounting Depth: 174 mm (6.85")
• Magnet: High density flux ferrite
• Cone Material: Polypropylene with UV inhibitors
• Weight: 5.1 kg (11.24 lb.)
• Sensitivity: 88.5 dB

Elevated Marine Sound with Refined Styling

The Hertz PORTOFINO 100 S4 brings together premium marine durability, powerful low-frequency performance, and elegant yacht-friendly styling in one refined subwoofer package.

From its flush-mount architecture to its deep and controlled bass response, every detail is designed to enhance the onboard listening experience without compromising the look of luxury marine interiors.

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FAQs

1. What size is the Hertz PORTOFINO 100 S4? The PORTOFINO 100 S4 features a 10-inch marine subwoofer design engineered to deliver deep, rich bass while integrating cleanly into luxury marine interiors.
2. How much power can this subwoofer handle? The subwoofer handles 250 watts RMS continuous power and up to 500 watts peak power for strong, controlled low-frequency performance on the water.
3. Is the Hertz PORTOFINO 100 S4 marine-rated? Yes, the PORTOFINO 100 S4 is built specifically for marine environments with IP65 water-jet protection, UV-resistant materials, and salt fog tested construction for added durability.
4. Does this subwoofer require an enclosure? No, it is designed for infinite-baffle applications, allowing it to deliver impressive bass performance without requiring a dedicated enclosure.
5. What finishes are available for the Hertz PORTOFINO 100 S4? The subwoofer is available in both black and white marine-grade finishes, making it easy to match a wide range of yacht and marine interior styles.

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