Z- Nominal Impedance in Ohms - Dual 4
Qts = Total Q factor of driver -0.485
Vas = Equivalent acoustic volume in cubic litres -117.873
Xmax = peak linear displacement of cone in mm - 14
SPL = Speaker’s SPL 1 watt at 1meter in dB: -88.178
Voice Coil Diameter in inches - 3
Mounting Depth in mm - 200
Mounting Diameter in mm - 355
Sd = Piston area in square meters -0.085
Cms = Mechanical suspension compliance - 114.891
Mms = Mechanical mass of cone and free air load in grams - 282.718
Qms = Mechanical Q factor of driver - 2.516
Qes = Electrical Q factor of driver - 0.601
Revc = DC voice coil resistance in Ohms - 7.2
Fo = Free air resonance frequency in Hz - 27.925
No = The reference efficiency of the system in % - 0.413
Mmd = Diaphram mass in grams - 268.469
Magnet weight in oz - 150