HomeAll ProductsFocal SUB 5 KMFeatures:5.25" (145mm)'M'-profile Aramid fiber woofer cone2.375" (60mm) voice coilFerrite motorTMD (tuned mass damper) surroundGrille sold seperately (GR 5 KM)Focal SUB 5 KM$739.99PriceIn-Store OnlyTechnical Data:Nominal Impedance4 ΩRMS Power Handling200 WPeak Power Handling400 WFrequency Response(-3 dB)35 Hz – 250 HzSensitivity (2.83V / 1M)86 db