6.5" 200 Watt 2-Way Coaxial Marine Speaker Power (Max) 200 Watts Power (RMS) 100 Watts Frequency Response 45-20KHz Sensitivity 90dB Impedance 4 Ohms Magnet 15 Oz Rubber Surround Piano Black IMPP Cone Titanium Dome Diaphragm High Performance Tweeter Mounting Depth: (2 ¾" )