Hertz Marine Audio: High-Performance Boat Speakers, Subs & Amplifiers

Power depends on boat size and listening distance. A small bow-rider may sound great with 400–600 watts, while larger cruisers often need 1,000+ watts to project sound over engine noise and open air. Always match amplifier RMS output to your speaker RMS rating for clarity and longevity.

Use a dual battery setup with an isolator switch so one battery handles audio and the other starts the engine. Turn off amplifiers when the engine isn’t running and consider a power management monitor to track voltage use.

Leading names include JL Audio, Kicker, and Hertz, known for durability, sound clarity, and advanced waterproofing. Each brand offers different styles and price ranges, making it easy to tailor your system to your boat and budget.

Regularly rinse with fresh water, avoid harsh detergents, and apply dielectric grease on terminals. Keep the system covered when not in use and ensure your boat’s wiring connections are tight and sealed with heat-shrink tubing.

Look for a marine-certified stereo with IP ratings (like IPX6), UV protection, Bluetooth, and multi-zone control. Some units integrate with Fusion-Link, JL Audio, or Kicker systems for full helm control and better sound management across multiple zones.

You shouldn’t. Car amplifiers aren’t sealed against moisture or corrosion. Marine-grade amplifiers are coated and gasketed to prevent saltwater damage, ensuring reliable performance even in humid, damp conditions.

Marine speakers are built to handle water, salt, and UV exposure, featuring corrosion-resistant components, sealed enclosures, and waterproof wiring. Car speakers lack this protection and can quickly fail in marine environments due to moisture and vibration.