Sica 12N2.5 (Z007971)
Nominal Overall Diameter ................. 320 mm
Nominal Impedance........................... 8 Ω
Nominal Voice Coil Diameter .............. 65 mm
Musical Power ................................. 500 W
Magnet Weight ............................... 220 g
Rated Power* .................................. 250 W
T Sensitivity @ 1 W, 1 m ....................... 98.8 dB
Weight ......................................... 2.50 Kg
THIELE-SMALL PARAMETERS
Voice Coil DC Resistance ........... RE 5.47 Ω
Resonance Frequency ............... fs 55.3 Hz
Mechanical Q Factor................. QMS 10.93
Electrical Q Factor................... QES 0.41
Total Q Factor........................ QTS 0.40
Mechanical Moving Mass ............ MMS 41.4 g
Mechanical Compliance............. CMS 200 μm/N
Force Factor .......................... B×l 13.84 Wb/m
Equivalent Acoustic Volume........ VAS 79.7 lt.
Maximum Linear Displacement .... XMAX +/-2.0 mm
Reference Efficiency ................ η0 3.16 %
Diaphragm Area ...................... SD 530.9 cm2
Losses Electrical Resistance........ RES 145.5 Ω
Voice Coil Inductance @ 1kHz ..... LE 0.33 mH
