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

The Hertz PORTOFINO 100 S4 delivers deep, controlled bass with refined Italian styling designed for premium marine environments. This 10-inch marine subwoofer handles 250W RMS and 500W peak power, adding powerful low-frequency performance to onboard audio systems while complementing the sophisticated interiors of luxury yachts. Available in black as the PORTOFINO100S4C and white as the PORTOFINO100S4W, it features an ultra-low-profile flush-mount design and a frameless magnetic mesh grille for a clean, screw-free finish.

Designed to bring depth and impact to your music, the PORTOFINO 100 S4 combines a 10-inch polypropylene cone with UV inhibitors and a high-density flux ferrite magnet. Its 50 mm single voice coil and 4-ohm configuration support integration into compatible marine audio systems.

250W RMS Power Handling

500W Peak Power Handling

10-Inch Polypropylene Cone

50 mm (2") Single Voice Coil

4-Ohm Impedance

88.5 dB Sensitivity

The low-profile flush-mount architecture integrates neatly into suitable marine installations without adding unnecessary visual bulk. A fine-mesh magnetic grille creates a smooth, screw-free appearance that complements contemporary yacht interiors.

Ultra-Low-Profile Flush-Mount Design

Frameless Magnetic Mesh Grille

Screw-Free Styling

Available in Black and White

The PORTOFINO 100 S4 is designed to withstand demanding marine environments. Its IP65 rating provides protection against dust ingress and water jets under specified test conditions. UV resistance tested to ASTM-D4329 and salt-fog resistance tested to ASTM-B117 help protect the subwoofer against environmental exposure and corrosion.

IP65 Protection Rating

UV Resistance Tested to ASTM-D4329

Salt-Fog Resistance Tested to ASTM-B117

Polypropylene Cone With UV Inhibitors

High-Density Flux Ferrite Magnet

Designed for infinite-baffle applications, the PORTOFINO 100 S4 does not require a dedicated subwoofer enclosure. Its flush-mount design helps conserve onboard space while providing a discreet installation for compatible marine audio systems.

10-Inch Marine Subwoofer

250W RMS / 500W Peak Power Handling

4-Ohm Single Voice Coil

Deep, Controlled Low-Frequency Output

Low-Profile Flush-Mount Architecture

Magnetic Mesh Grille With Screw-Free Styling

IP65 Protection Rating

UV and Salt-Fog Resistance Testing

Infinite-Baffle Design

Black and White Finish Options

Size: 250 mm (10")

Power Handling (Continuous): 250W RMS

Peak Power: 500W

Impedance: 4 Ohms

Voice Coil Type: Single Voice Coil (SVC)

Voice Coil Diameter: 50 mm (2")

Mounting Depth: 174 mm (6.85")

Magnet: High-Density Flux Ferrite

Cone Material: Polypropylene With UV Inhibitors

Sensitivity: 88.5 dB

Weight: 5.1 kg (11.24 lbs)

Protection Rating: IP65

Available Colours: Black (PORTOFINO100S4C) and White (PORTOFINO100S4W)