Suitable for E/F/G BMW Models180 Watt RMS, 300 Watt max.Impedance 2 ΩFrequency Range 30 - 300 HzDual Neodymium Magnet50mm (2") Voice CoilFiberglass Cone, Nomex SpiderInstallation Depth 31mmInstallation Opening 192mmPlug+Play Connetors