- Power Handling: 150W MAX or 50W RMA (EIA-426B - Frequency Response: 60-20,000 Hz - Sensitivity: 91db (2..83V/1m) or 88dB (1W/1m) - Impedance: 4 Ohms - Thiele/Small parameters: fs=68 Hz, Qts=0.89, Vas=0.45 ft3 - Woofer Magnet: 8 oz Barium Ferrite