The Complete Handbook of Marine Speakers

Chapter 1: Understanding Marine Speakers

When you mount a speaker on a boat, you are subjecting it to an environment that is far more hostile than any apartment living room or car interior. The air itself is corrosive. Salt particles from sea spray settle on the cone, the surround, the voice coil, and the metal basket, creating an electrolytic reaction that eats away at unprotected metal and degrades organic materials. Ultraviolet (UV) radiation from direct sunlight degrades the polymers and rubber compounds used in a standard car speaker, causing them to crack and become brittle within a single season of use. Combined with the constant vibration of the hull, high humidity, and temperature swings that can range from cold morning air to a scorching deck surface, standard audio equipment is essentially doomed to a short and catastrophic life in this environment.

This is the fundamental reason marine speakers exist. A marine speaker is not a marketing gimmick, it is an engineering response to the specific physical challenges of the nautical environment. The goal is not to necessarily create a better-sounding speaker than a high-end home audio unit, but to produce a speaker that functions reliably and maintains its sound quality for years while under constant assault from the elements. The engineering choices made in the design of a marine speaker, from the choice of the cone material to the sealing of the crossover, are secondary to these performance requirements.

The primary difference, and the first thing you will see when