5-inch Speaker for use in marine or humid environments. The APart CMAR5-W marine loudspeaker has been designed especially to offer quality sound even in the most difficult, humid and hot conditions. That's why we have combined the best quality components with rigorous engineering specifications. The result is a speaker that offers both durability and a superb sound. Especially for use in yachts, cruise ships or saunas. CMAR is available in 5.25-inch, 6.5-inch and 8-inch, so that there is always a speaker that exactly fits needs.