Description of 45KM84L:Loud and clear, the KM Coaxial Marine Speakers are built to pump out the tunes – and the fun - for years to come! Whether you mount your speakers in the hull or in KICKER tower enclosures, you also get a pair of stout marine-grade grilles!Our speakers are made to thrive in the water. UV treatments on injection-molded cones, Santoprene surrounds, baskets and grilles all help maintain top-shelf performance. KM speakers will endure almost any weather conditions with splash-and-spray-resistant sealed motors, cones and Locking/Sealed Terminal Covers. Speaker hardware is forged from rustproof, 316L stainless-steel.Description of DMAC80B:Rockville is proud to introduce our all new line of aluminum wakeboard cans. The DMAC80B features double pod design which allows you to mount two 7.7” speakers. It includes our rugged universal aluminum clamp for easy installation to any wakeboard tower pole measuring from 2 to 2.5 diameter. Six precision molded high impact rubber inserts guarantee fitment on towers from 2” to 2.5”. Our clamp inserts are precision-fitted to sit perfectly inside the metal clamps. The speaker terminals are safely enclosed inside the waterproof speaker canister.This awesome double pod is built of super strong aircraft grade 6061 aluminum. The DMAC80B features a black powder-coat finish which offers unparalleled resistance to chipping, scratching, and fading. It is fully marinized which means it will withstand the elements on the water. This unit is 100 % waterproof. What makes our technology the best on the market is that our pods are internally wired! This means the terminals are inside the pod and the wires are fed through pre-drilled holes on the pod and clamp. Simply align the wire opening with the hole on your tower and you are done! No exposed wires or terminals! Aluminum cans will last forever!