Diameter 250 mm / 9.84″ Power Handling (RMS/max.) 200 / 500 Watts Impedance 4 Ohms Efficiency 96 dB Frequency Response 100 Hz – 10 kHz Voice Coil 50 mm / 2″ CCA Mounting Ø 231 mm / 9.09″ Mounting Depth 98 mm / 3.86″ Resonance Frequency (Fs) 76 Hz. – 500 Watts max. – 250 mm / 10″high efficient midrange speaker with reinforced paper cone and short CCAW voice coil, incl. grill- – 10″ high power midrange speaker. – 50 mm / 2″ CCA voice coil. – Fiber reinforced paper cone. – Ferrite motor. – Resonance free steel basket. – Dual cone paper dust cap. – Incl. protection grill. 1 piece / package