6.5″ Flush Mount Speaker Grills - Black (Pair) Upgrade and protect your marine audio system with the Diamond Audio HXM65FBB 6.5” Flush Mount Speaker Grills – Black (Pair), engineered for durability, sleek styling, and secure fitment. These premium 6.5-inch black marine speaker grills are designed to shield your speakers while maintaining a clean, low-profile appearance in boats, UTVs, golf carts, and outdoor audio installations. Constructed from high-quality, UV-resistant materials, the HXM65FBB