Author: Unknown
•3:22 PM
By Petra Berg


Nautical environments pose tough challenges for the durability and operation of audio systems on boats and ships. In particular, marine audio equipment must be purposefully designed with great attention to avoid degradation through corrosion. Fortunately, a large range of choice is available. Selecting the best marine speakers may be a tough challenge.

Modern sound technology has advanced in great leaps and bounds over recent years, including technology related to marine applications. High quality, corrosion and water resistant systems are now affordable and easily available to recreational boaters. The components of these systems can be installed both on-deck and down below on a boat, including the salon and staterooms and the cockpit.

One important and cautionary point is that sound equipment designed for cars or homes is not suitable for a harsh nautical environment like that on a boat. These systems are not suitable for maritime environments. In addition to corrosion (salt, moisture), damage from sunlight and disturbance from motion, a boat sound system must also be designed to handle the noise made by the vessel moving through the water as well as the noise made by the engines. This noise issue is usually addressed by including a good amplifier as part of the system.

Speaker units are available in many physical dimensions. Most units range from 4-8 inches in diameter and have a 4-80 watt power range. Subwoofers a larger at 8-15 inches in diameter. Amplifiers can boost volume to 25-350 watts across 2 to 4 channels.

Audio units must be mounted on a boat using special mounts and other hardware, and often special mounting techniques, designed specifically for nautical applications. Care should also be taken to avoid different metals having direct contact and accelerating galvanic (electrolytic) corrosion. This is achieved with plastic separators being positioned between the different metals.

To sum up high selling, popular brand names in the niche nautical segment are owned by manufacturers from all over the world. The best marine speakers tend to have infinite baffle mounting, meaning that they have no enclosure by design. In-wall mounted units are well-known examples of infinite baffle mounting. In the case of a speaker enclosed in a sealed box, air inside the box behaves like a spring or coil to project out the sound in the direction the speaker is angled.




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