Polyplanar SBC-3 11 " Speaker Back Cover

The Polyplanar SBC-3 11" Speaker Back Cover is a protective enclosure designed for marine and outdoor audio systems where speakers face exposure to harsh environmental conditions. Built for tactical and maritime applications, this back cover shields the rear assembly of Polyplanar's premium audio equipment from saltwater spray, UV degradation, and mechanical damage.

Manufactured from high-impact white ABS polymer, the Polyplanar SBC-3 11" Speaker Back Cover delivers rigid structural protection while remaining lightweight. The ABS construction resists UV exposure, corrosion from salt environments, and impact damage common in vehicle and vessel mounting scenarios, ensuring the cover maintains integrity under thermal cycling and prolonged sun exposure without warping or degradation.

Operators equipping patrol boats, tactical vehicles, and remote communications stations benefit most from this protective solution. The 11-inch size accommodates larger Polyplanar speaker models, providing rear-side concealment and enhancing the durability of audio systems in challenging field conditions.