Blaupunkt 69? 4-Way Speakers 700 Watts Max 150 Watts RMS 4 Ohm Impedance High Quality PP Cone Butyl Rubber Surround 1? High Temperature Aluminum Voice Coil Ceramic Magnet Mylar Dome Tweeter Frequency Response: 50 Hz - 20 kHz Sensitivity: 90dB SPEAKER GRILLS INCLUDED! Mount Depth: 3.2"e;