Features 1.5" TIL voice Coil Neo Charged Ferrite Oxide Enhanced Midbass Wider Frequency Response Paper cone Cloth surround Sold in Single Specifications Nominal Power Handling: 200 Watts Peak Power Handling: 400 Watts Impedance: 8 Ω Resonant Frequency (fs): 95.7Hz D.C. Voice Coil Resistance (Re): 5.8 Ω Mechanical Quality Factor (Qms): 4.36 Electrical Quality Factor (Qes): 0.44 Total Quality Factor (Qts): 0.40 Equivalent Air Volume to Cms (Vas): 10.3 L Cms: 0.31 mm/N Mass of Diaphragm/Coil (Mms):