Nominal Impedence 10 ohms, Fs(Hz) 68.9836, ZMax(ohms) 87.5530, Re(ohms) 9.990, Qms 4.9691, Qes .6400, Qts .5670, Cms .6907, Mms(g) 7.7061, BL 7.2206, VAS (liters) 6.9602, dBSPL 87.5495, L 1kHz (mH) 1.3301, L 10Khz (mH) .5624, Z Min 10.9094