Features Specifications Size - 10" Impedance: 4 RMS Watts: 350 Music Program: 700 Resonance 69.8 Hz Sensitivity: 94.6 dB Voice Coil Diameter: 2.5" Sold As - Single Driver Composition Voice Coil Wire: CCAW Coil: KSV Magnet: Ferrite Basket: Stamped Steel Cone: paper Cone Edge: cloth T/S Parameters Resonant Frequency (fs) 69.8 DC Resistance (RE) 3.2 Coil Inductance (LE) 0.43mH Mechanical Q Qms) 7.57 Electromagnetic Q (QES): 0.47 Total Q (QTS) 0.44 Compliance Equivalent volume (VAS) 26.1 Mechanical