Model 2-way component speakers Power handling (RMS) 130 Watt / Watts Power handling (max.) 220 Watt / Watts Diameter 165 mm / 6.50″ Impedance 4 Ohms Efficiency 88 dB Frequency Response 40 Hz – 24 kHz Tweeter GZHT 25S Outside Ø 54 mm / 2.13″ Midwoofer GZHK 165 Lautsprecher Durchmesser 165 mm / 6.5″ Mounting Ø 144 mm / 5.67″ Mounting Depth 69 mm / 0.27″ Crossover Variable 2-way Crossover Frequency 4500 Hz.