GROUND ZERO GZPM 80SQ-C

ModelHigh end midrange speaker Diameter80 mm / 3.15? Power handling (RMS/max.)70 / 110 Watts Impedance4 Ohms Efficiency89 dB Frequency Response150 Hz ? 4000 Hz Voice coil20 mm / 0.79? ConeCeramic coated aluminum Magnet materialNeodymium Mounting diameter77 mm / 3.03? Mounting depth39 mm / 1.54? Resonance frequency (Fs)100 Hz