Diameter 165 mm / 6.50″ Power Handling (RMS/max.) 100 / 300 Watts Impedance 4 Ohms Efficiency 94 dB Frequency Response 220 Hz – 10 kHz Voice Coil 38 mm / 1.5″ CCA Mounting Ø 143 mm / 5.63″ Mounting Depth 72 mm / 2.83″ Resonance Frequency (Fs) 189 Hz – 300 Watts max – 165 mm / 6.5″ high efficient midrange speaker with reinforced paper cone and short CCAW voice coil, incl. grill. – 6.5″ high power midrange speaker – 38 mm / 1.5″ CCA voice coil – Fiber reinforced paper cone – Ferrite motor – Resonance free steel basket – Paper dust cap – Incl. protection grill 1 piece / package