Speaker Size (In): 8 Watts RMS: 1200 Impedance: D2 VCD (In): 2.5 Fs (Hz): 42 Qms: 5.88 Qes: 0.62 Qts: 0.56 Vas (Liters): 4.64 Xmech (MM): 57 Xmax (MM): 20