6" x 9" Three-Way Speaker System Specifications RMS Power Handling: 60 Watts per Speaker PEAK Power Handling: 150 Watts per Speaker // 300 Watts per System Frequency Response: 55Hz - 20 kHz Sencitivity:90dB @ 1w/1m System Impedance: 4 Ohm Mounting Depth: 2.87" Features 6" x 9" Three-Way Speaker System Black Polypropylene Mica Cone Treated Cloth Surround 1"High Temperature Aluminum Voice Coil 2-1/2" Polymer Cone Midrange 1/2" Polymer Dome Tweeter Includes Custom Molded Grills