Alpine SPS-406 4x6" Coaxial 2-Way Speaker Set

Great sounding upgrade speakers at competitive price points Perfect for OEM upgrade, with many sizes to choose from to suit almost any vehicle. New cosmetics look good in your car, and fit easily in your stock Improve the output and sound quality of your vehicle with these highly efficient speaker choices High efficiency design runs easily off of factory or built-in head unit power for an easy system upgrade CEA-2031 Power Rating: 45 Watts Power Handling Capacity (RMS): 45 Watts Power Handling Capacity (Peak): 140 Watts Frequency Response: 93Hz - 22kHz Impedence: 3.6 Ohms Sensitivity: 87dB /W(1m) Cone Material: Poly-Mica Cone Motor Technology: Optimized Magnet Voice Coil Type: Square-Wire Short Voice Coil Cooling: Optimized Air-Flow Design Magnet: High Grade Strontium Magnet Mounting: Shallow Mounting Design Frame: Stamped Steel Shallow Frame Tweeter Type: 3/4'' Wide Range Silk Dome Tw