JL Audio M-MCPv3-SU-Top, Mounting fixture for M880-ETXv3, M770-ETXv3 and MX770-ETXv3 models, Supra boats only, OEM top tower position

This fixture is designed to attach all ETXv3 enclosures to the OEM top tower position found on Supra boats. Armed with a tough, clear anodized finish that’s UV/corrosion-resistant, each fixture is precision-machined from marine-grade aluminum to create rock-solid attachments points. Each fixture set is designed to mount two ETXv3 enclosures and includes stainless-steel hardware for years of durability.