Type: Floorstanding Speakers Driver Units: 1 - 1" dome tweeter 2 - 4.5" BDSS bass/mid drivers 1 - 5"x10" long-throw racetrack subwoofer 2 - 5"x10" bass radiators Power Rating: Recommended Associated Amplifier Power: 20 – 250 watts Internal Amplifier Power: 300 watt Frequency Response: 16 Hz – 30 kHz Nominal Impedance: Compatible with 8 Ohm outputs Sensitivity: 93 dB Connectors: Inputs: One pair of 5 way binding posts; One LFE input (optional) Remote Control: No