110 Watts max 4″ 2-way coaxial speaker system with black anodized aluminum cone and 3-ohms inpedance 2-way coaxial speaker system Aluminum cone Rubber surround Nomex spider Resonance free steel basket High efficient 3 ohms version 25 mm / 1″ silk dome tweeter Ferrite motor Tweeter and overload protection Incl. protection grill Model 2-way coaxial speakers Diameter 100 mm / 3.94" Power Handling (RMS/max.) 70 / 110 Watts Impedance 3 ohms Efficiency 90 dB Frequency Response 70 Hz – 24 kHz Tweeter 25 mm / 1" silk dome Mounting Ø 93 mm / 3.66" Mounting Depth 47 mm / 1.85" Crossover 6 dB/oct – high pass filter