Eminence Sigma Pro Series Loudspeakers Specifications

Thiele-Small Parameters
Resonant Fequency (fs)	28 Hz
Impedance (Re)	6.29 ohms
Coil Inductance (le)	1.90
Electromagnetic Q (Qes)	0.30
Mechanical Q (Qms)	8.28
Total Q (Qts)	0.29
Compliance Eqiv. Volume	441.2 liters
Peak Diaphragm Displacement Vol. (Vd)	688cc
Mechanical Compliance of Suspension (Cms)	0.24mm/N
BL Product (BL)	22.1 T-M
Diaphragm Mass incl. Airload (Mms)	130 grams
Equivalent Resistance of Mech. Suspension Loss (Rms)	2.81*sec/M
Efficiency Bandwidth Product (EBP)	95
Voice Coil Overhang (Xmax)	6.0mm
Surface Area of Cone (Sd)	1140cm2
Impedance at Resonance (Zmax)	180 ohms