M650-CCX-SG-TB - JL Audio 6.5" 70W RMS 2-Way Marine Coaxial Speakers M650-CCX-SG-TB - JL Audio 6.5" 70W RMS 2-Way Marine Coaxial Speakers Continuous Power Handling: 70W System Efficiency: 89.5 dB @ 1W/1m System Nominal Impedance: 4 ohm Woofer Mounting Depth: 2.95 inches