thiele/small parameters
Nominal Impedance (Z) 4 ohms
DC Resistance (Re) ]] 3.8 ohms
Resonance Frequency (Fs) 27.8430 Hz
Piston Area (Sd) 0.0511 m2
Force Factor (BL) 10.3379 T.m
Mechanical Q Factor (Qms) 4.0762
Electrical Q Factor (Qes) 0.4073
Total Q Factor (Qts) 0.4216
Sensitivity 1W/M (SPL) 87.3655
Mechanical Comp (Cms) 0.2047 mm/N
Moving Mass (Mms) 159.6086 g
Linear Excursion (Xmax) . 9 mm
Volume Acoustic Comp (Vas) 74.5578 Ltr/2.632984 cu ft
Reference Efficiency (NO.) 0.33% RMS
Power (Pe) 400 Watts
Frequency Response 20-250 Hz
Voice Coil Diameter 2.5 in/63.5 mm
Displacement 0.0619 cu ft/1.752 Ltr
in the box:
SPC-10S2, Manual, Warranty