RX46CX – 4×6 Inch 80 Watt Coaxial Speaker | Anti-Resonant Steel Basket | Triple Laminated, Ultra Sti The RX46CX is an RX 4×6 Inch 80 Watt Coaxial Speaker Product Specifications: Anti-Resonant Steel Basket High Temperature CAE/CAD Motor Structure Triple Laminated, Ultra Stiff and Light Cone UV Treated Foam Surround Power Handling: 40W Impedance: 4-Ohms Mounting Depth: 2.1in – 51.5mm Mounting Diameter: 5.6×3.5in – 143x88mm