Custom sub box mount pics.

[EarmarkMarine]

We use resin-coated or polyurethane-coated (real bed liner) mdf with all the disciplines that I described and quite a few more. We have products in the market that have not failed since '98. As an upgrade we use MEDEX which is a solvent-based construction fiberboard. The MEDEX has greater water resistance and holds screws better than standard mdf. Either is highly acoustically inert. MDO, a ply product, is the equivalent of the MEDEX. I would still coat anything. If you use 0.75" stock I cannot see how the sound will differ. Again, focus on the execution of making a perfect box no matter what you use. No caulked holes to pass the wire. Elevate the box. Build in drainage and evaporation. No automotive carpet. etc.

David
Earmark Marine

David,

Thanks for the input. I can change the materials. Should I go plywood instead of mdf?

Will the sound be audible in differences. What does earmark use on there sealed boxes for material.

[jmvotto]

Build in drainage and evaporation.

David
Earmark Marine

Not sure what this means in a sealed enclosure?
Joe

[EarmarkMarine]

Elevating the enclosure off the sole with HDPE pads and always maintaining space between the enclosure and carpeted surfaces.

David
Earmark Marine

Not sure what this means in a sealed enclosure?
Joe

[jmvotto]

got it drainage of the boat with clearance vs the internal speaker drainage.

Thanks gain for chiming in on this..

[New Guy]

For elevation use hockey pucks they are cheap, easily accessible and durable.