Beta 12LT Specifications

Thiele-Small Parameters
Resonant Fequency (fs)	45 Hz
Impedance (Re)	7.37 ohms
Coil Inductance (le)	0.83mH
Electromagnetic Q (Qes)	0.55
Mechanical Q (Qms)	6.44
Total Q (Qts)	0.51
Compliance Eqiv. Volume	136.3 liters
Peak Diaphragm Displacement Vol. (Vd)	42cc
Mechanical Compliance of Suspension (Cms)	0.34mm/N
BL Product (BL)	11.7 T-M
Diaphragm Mass incl. Airload (Mms)	36 grams
Equivalent Resistance of Mech. Suspension Loss (Rms)	1.59 sec/M
Efficiency Bandwidth Product (EBP)	83
Voice Coil Overhang (Xmax)	0.8mm
Surface Area of Cone (Sd)	532.4cm2
Impedance at Resonance (Zmax)	94 ohms

Back to the Beta Speaker Pages