Blaupunkt Blue Magic QL 690 - 6x9-Inch 300-Watt 4-Way Speaker System (Discontinued by Manufacturer) 6-Inch x 9-Inch 4-Way Speaker System 300 Watts Peak Power, 67 Watts RMS Injected PP Cone, Mylar Dome Midrange, PEI Dome and Piezo Tweeters EXP Pole Core Technology Sensitivity: 92dB