Hertz HMS 10 B4-LD-C 10" Marine LED Classic Charcoal Grille Subwoofer - 4 Ohm

Hertz HMS 10 B4-LD-C 10" Marine Subwoofer – 4Ω

Bring powerful, deep bass to your marine audio system with the Hertz HMS 10 B4-LD-C 10" Marine Subwoofer. Engineered for high-performance marine applications, this long-throw subwoofer delivers 300 watts RMS and 600 watts peak power, providing impressive low-frequency output, enhanced bass response, and the punch needed to complete your sound system.

Designed specifically for infinite baffle installations, the HMS 10 B4-LD-C produces powerful bass without requiring a traditional sealed subwoofer enclosure. By handling the lowest frequencies, this subwoofer allows your main speakers to focus on midrange and high-frequency performance, creating a fuller, more balanced listening experience.

Built to withstand demanding marine environments, the HMS 10 B4-LD-C combines advanced speaker technology with rugged, weather-resistant construction for reliable performance on the water.

Powerful Bass with Long-Throw Performance

The Hertz HMS 10 B4-LD-C features a high-excursion design engineered to deliver strong, controlled bass even at high sound pressure levels.

Its 2-inch (50mm) voice coil, high-density ferrite magnet, and FEM-optimized motor structure work together to provide precise cone movement, improved power handling, and consistent low-frequency performance.

With 13.5mm of Xmax and a maximum mechanical excursion of 19mm, this subwoofer is designed to move significant amounts of air, producing deep, powerful bass while maintaining control and clarity.

Built for Demanding Marine Environments

Marine audio equipment must withstand constant exposure to moisture, sunlight, vibration, and changing temperatures. The HMS 10 B4-LD-C is engineered and tested for these challenging conditions.

Its UV-resistant polypropylene cone provides durability against sun exposure, while the progressive aramid fiber spider and silicone-insulated lead wires help maintain consistent performance over time.

Gold-plated, corrosion-resistant brass terminals with protective silicone caps provide dependable electrical connections, helping protect against moisture and corrosion.

Key Features & Benefits

• 300W RMS / 600W Peak Power Handling: Delivers powerful, controlled bass for high-performance marine audio systems.
• 10" Long-Throw Subwoofer: High-excursion design produces impressive low-frequency output and bass response.
• 4-Ohm Impedance: Compatible with appropriately rated marine amplifiers and audio configurations.
• Infinite Baffle Design: Engineered for installations that do not require a traditional sealed subwoofer enclosure.
• 2" High-Performance Voice Coil: Provides reliable power handling and precise cone control.
• High-Density Ferrite Magnet: Delivers strong magnetic force for consistent performance at high output levels.
• UV-Resistant Polypropylene Cone: Designed to withstand sun exposure and demanding marine conditions.
• Durable Aramid Fiber Spider: Progressive design with silicone-insulated lead wires improves durability and long-term performance.
• Corrosion-Resistant Terminals: Gold-plated brass connections with silicone protective caps help guard against moisture and corrosion.
• Marine-Grade Construction: Tested against UV exposure, salt fog, vibration, water spray, thermal shock, and dust.

Technical Specifications

Power & Speaker Specifications

Electro-Acoustic Specifications

Dimensions

Deep Bass. Built for the Water.

The Hertz HMS 10 B4-LD-C 10" Marine Subwoofer combines powerful low-frequency performance, advanced long-throw technology, and marine-ready durability in one high-performance design.

Whether you're upgrading an existing marine audio system or building a complete setup, this subwoofer delivers the additional bass output and depth needed for a fuller, more powerful listening experience.