Hertz Energy deliver pure car audio Energy to your ears. Technical Specification Component - Two way systemWoofer size mm (in.) 165 (6.5)Tweeter diaphragm mm (in.) 26 (1)Power handling W peak 300W continuous 100Impedance 4OhmsFrequency response 60 Hz - 23kHzSensitivity dB SPL 93.5Woofer magnet size D·d·h mm (in.) 85 x 32 x 15 (3.35 x 1.26 x 0.5)Tweeter magnet size D·d·h mm (in.) 19 x 3 (0.75 x 0.12)Woofer voice coil Ø mm (in.) 25 (1)Tweeter voice coil Ø mm (in.) 20 (0.8)Woofer magnet - High density flux ferriteTweeter magnet - NeodymiumWoofer cone - Water repellent pressed paperTweeter dome - TetolonCrossover type - LP/HP @ 3 kHz - 6/12 dB Oct.Component adjustment dB +2, 0, -2Woofer weightof one component kg (lb.) 0.96 (2.12)Tweeter weightof one component kg (lb.) 0.03 (0.07)Crossover weightof one component kg (lb.) 0.17 (0.37