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Overview

This 10-inch marine subwoofer delivers deep, controlled bass in a low-profile flush-mount design made to complement premium yacht installations. With 250W RMS and 500W peak power handling, it provides powerful low-frequency performance, while IP65-rated construction with UV and salt-fog resistance helps protect it in demanding marine environments. A magnetic mesh grille adds a clean, screw-free finish.

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

Model: PORTOFINO100S4W
Web Code: 20200866
Sold and shipped by | 4.6 seller rating (256 reviews)

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Warranty Information

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

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

The Hertz PORTOFINO 100 S4 delivers deep, refined bass in a premium 10-inch marine subwoofer designed specifically for luxury yacht environments. With 250W RMS and 500W peak power handling, it provides powerful and controlled low-frequency performance, while its ultra-low-profile flush-mount design integrates cleanly into modern marine interiors.

Premium Marine Bass Performance:

The PORTOFINO 100 S4 is engineered for smooth, controlled bass performance in open-air marine applications. Its 10-inch polypropylene cone with UV inhibitors, high-density ferrite magnet, and 50 mm single voice coil provide reliable low-frequency performance while maintaining a refined sound.

• 250W RMS power handling

• 500W peak power handling

• 4-ohm single voice coil

• 50 mm (2") voice coil

• 88.5 dB sensitivity

• 10-inch polypropylene cone

• High-density flux ferrite magnet

Luxury Yacht Design:

The ultra-low-profile flush-mount design allows the PORTOFINO 100 S4 to blend naturally into premium yacht interiors. Its fine mesh magnetic grille provides a clean, screw-free appearance while maintaining the refined styling of the PORTOFINO series.

• Ultra-low-profile flush-mount design

• Designed for luxury yacht environments

• Fine mesh magnetic grille

• Screw-free grille styling

• Available in black and white finishes

Built for Marine Conditions:

Designed for life on the water, the PORTOFINO 100 S4 features marine-grade construction with protection against water exposure, UV radiation, and salt fog. These features help provide reliable performance in demanding marine environments.

• IP65-rated construction

• ASTM-D4329 UV resistance

• ASTM-B117 salt fog testing

• Polypropylene cone with UV inhibitors

• Marine-grade construction

• Designed for demanding marine environments

Flexible Marine Installation:

The PORTOFINO 100 S4 is designed for infinite-baffle applications, eliminating the need for a dedicated enclosure. Its flush-mount design and 174 mm mounting depth make it well suited for installations where space and appearance are important.

• Designed for infinite-baffle applications

• No dedicated enclosure required

• 174 mm (6.85") mounting depth

• Designed for flush-mount installation

• Designed to pair with Hertz Marine amplifiers

Premium Portofino Styling:

The PORTOFINO 100 S4 combines refined Italian-inspired styling with marine-focused construction and powerful bass performance. Available in black or white, it can complement a range of premium yacht interiors while providing a clean and sophisticated installation.

• Black finish – PORTOFINO100S4C

• White finish – PORTOFINO100S4W

• Premium marine styling

• Designed for luxury vessels

• Quantity: Each

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping on all orders.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • Yukon
  • Northwest Territories
  • Nunavut
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
See our return policy to find specific return information for this product and steps on how to return by mail.