Skar Audio FSX10-8 10" 400 Watt 8 Ohm Pro Audio Midrange Loudspeaker, Each Skar Audio FSX Series 10" 8 Ohm Mid Range Speaker 200 Watts RMS Power - 400 Watts Max Power 1.5" Voice Coil - Ferrite Magnet Useable Frequency Range : 50Hz-10kHz Sensitivity : 95.1 dB 1W/1m