Impedance zn 3.2 OHM Resonance Frequnecy fs 27.4 Power Handling watt RMS 250 Mechanical Q Qms 5,37 Electrical Q Qes 0.49 Total Q Qts 0.45 Xmax xmaxx in MM 20 Moving Mass mg in gram 120 Sensitivity Spl in DB 85 Mechanical Resistance Rms in Kg/g 4,0 Compltance Cms [in mm/N] 0,27 Force Factor BL in Tm 11 Equlvalent Volume Vas in L 45,1