Ground Zero GZRM 80SQX

Model Sound quality midrange speaker Diameter 80 mm / 3.15″ Power handling (RMS/max.) 50 / 80 Watts Impedance 3 Ohms Efficiency 89 dB Frequency Response 140 Hz – 4 kHz Voice coil 25 mm / 1″ Cone anodized aluminum Magnetmaterial Neodymium Mounting Ø 77 mm / 3.03″ Mounting depth 37 mm / 1.46″ Resonance frequency (Fs) 138 Hz