Frequency Response: 50Hz 25k Hz Impedance: 4 ohms Magnet Weight: 2.9 oz Power Handling: 60 Watts Sensitivity: 90d B Tweeter: 1 Polyamide Balanced Dome Urethane Surround Woofer: 4 x 6 Injection-Molded Polypropylene Cone Width: 6-1/4 Height: 4 Depth: 1-15/16 Weight: 0.8 lb.