Features: 1.PERFECT BLEND: Car loudspeaker features a durable and innovative design that blends a loud speaker with a high powered driver. Enjoy crisp, clear sound. 2.VOICE COIL HEAT SINK: Coaxial car speaker features a voice coil heatsink design that handles extreme heat and maintains its structural integrity for long life. 3.REDUCED DISTORTION: Car speakers with 91db sensitivity and a 4 ohm impedance rating, compensate for the undersized wires in many cars, reducing distortion. 4.450W POWER OUTPUT: Car coaxial loudspeaker has a maximum peak power output of 450w, so you can play your favorite tracks as often as you like. 5.35HZ?22000HZ FREQUENCY: Car speakers with a frequency response of 35Hz?22000Hz, completes the car's midrange speaker enclosure system to achieve full stereo reproduction. specification:Item Type: Car Coaxial Loudspeaker Model: For TS A1396S Material: Magnet, Metal Iron Rated Power: 2 x 50W Maximum Power: 2 x 450W Impedance: 4 OHMS Sensitivity: 91dB Frequency Range: 35Hz-22000Hz Application Range: Applicable To All Car Sound Systems Size: Approx. 158mm/6.2in PackageList:2 x CarCoaxialLoudspeaker 2 x Cable 2 x Speaker Panel 8 x Screw NotePlease allow some error due to manual measurement.