Blaupunkt THc-652 6.5 inch 240W Coaxial Speaker Pair, 2-way Component loud speaker system, Max. Power 240 Watts, RMS Power 60 Watts, Impedance 4 Ohm, Frequency range 50 - 22,000 Hz, Sensitivity (2.83 V/m) 92 dB, Membrane material woofer Injected Polypropylene (IPP).