4) New Sony XS-GT6938F 6x9" 840 Watt 3-Way Car Coaxial Speakers Stereo XSGT6938F 4) New Sony XS-GT6938F 6x9" 840 Watt 3-Way Car Coaxial Speakers Stereo XSGT6938F MAX Power: 420 Watt (840W per 4-pack) RMS Power: 50 Watt (100W per 4-pack) Impedance : 4 ohm 3-Way Speaker Design