The owner of this boat came to us with a request to redo the audio system, that he was fundamentally not satisfied with. The Clarion speakers, that were installed at the factory -producer, eventually became completely unusable. At this point, we want to draw your attention - Never use the speakers of Clarion on your boats. These speakers have the worst quality and do not stand up to a long life in both fresh and salt waters.
We removed all the old audio components (sound amplifiers with rotten speaker connection terminals, 8 speakers and wiring of poor quality copper) from this boat.
We installed JL Audio subwoofer, 10 JL Audio speakers (4 pairs of which is a component acoustic system). All speakers and the subwoofer have fully enclosed and sealed enclosures. The enclosures under the rear passenger seat we made of plywood, applied several layers of fiberglass inside and outside of the enclosures and painted them with gel-coat. For speakers, that we installed on the old seats as well as for new seats, we made special sealed enclosures in the form of "glasses" of fiberglass. We paste the speakers enclosures in the mounting hole with a ship sealant in the beginning, and only then install the speakers.
Amplifiers Alpine PDX of class D (fully digital) we installed under the rear passenger seat. One amplifier for the subwoofer and two amplifiers for speakers.
Power and acoustic wires are made of oxygen-free copper. They are practically non-corrosive.
The sound turned out great! We can hear well the average and high frequencies at a full speed, we can hear well the entire frequency spectrum, starting with the lower frequency of 38 Hertz, at a medium speed.
Our client fully got what he wanted.
Good luck on the water, Baja!