OEM Frame Style-2/ 4 " 2-Way Component System/ Glass Fiber Sandwich Cone With Nomex Honeycomb Core/ Poly-Urethenane Dust Cap/ SBR Surround And Bimax Spider/ Glass Fiber Reinforced Poly-Carbonate Frame/ Neodymium Ring Style Magnet/ Direct Plug-In To Factory BMW Harness/ In-Line External Crossover/ CEA-2031 Compliant/ 4-Ohm Nominal Impedance/ 75Hz - 20kHz Frequency Response/ 87 dB Sensitivity/ Black Finish
