Quantum QB695 Beta Series 6 x 9 Inch 5-Way Speaker 6 x 9 Inch 5-Way Speaker, Piezzo Dome Tweeter, Mylar Dome Tweeter / Mid PP Cone, Ferric Oxide Magnet, Rubber Surround, Stamped Heavy Gauge Basket. Speaker structure: 6.5, max power: 200 Watts, RMS power: 80 Watts, sensitivity: 91dB Freq. response: 35Hz - 28KHz Magnet size: 18 oz Ferric Oxide Magnet