Boss Audio Systems Brs40 50 Watt 4 Inch Full Range Replacement Car Speaker Sold Individually

Impedance: 4 Ohms, Frequency Response: 100 Hz - 18 kHz, Sensitivity: 82 dB, Cone: Polypropylene, Voice Coil: 1 Inch Aluminum, Surround: Foam, Basket: Stamped, Dimensions: Depth 4.1” x Width 4.1” x Height 1.8”, Weight Per Pair: 1 Lbs., 3 Year Platinum Online Dealer Warranty