Hertz Mlk 1650.3 2-Way Kit Power Handling: 300 Watts Max | Power Handling: 150 Watts RMS | Impedance Ohm: 4 Frequency response Hz: 40 | Sensitivity dB SPL: 92 | Voice coil  mm (in.): Woofer 36 (1.4) Tweeter 28 (1.1) Woofer size mm (in.): 165 (6.5) | Tweeter size mm (in.): 28 (1) | Woofer magnet: Neodymium Tweeter magnet: Neodymium | Woofer cone: Pressed-pulp cone with cotton fibres | Tweeter dome: Tetolon Crossover type: 2 Way Passive Crossover | Crossover cut off: 2.5 kHz (Mid/Hi-Cont. = ON) 3.5 kHz (Mid/Hi-Cont. = OFF)