Sica 18"- 1400W Professional Woofer 18 S 4 PL 8 Ω (Z008405)
ELECTRICAL CHARACTERISTICS
Nominal Impedance........................... 8 Ω
Musical Power ................................. 1400 W
Rated Power* .................................. 700 W
Sensitivity @ 1 W, 1 m ....................... 98.1 dB
GENERAL CHARACTERISTICS
Nominal Overall Diameter ................. 462 mm
Nominal Voice Coil Diameter .............. 100 mm
Magnet Weight ............................... 780 g
Flux Density................................... 1.11 T
Weight ......................................... 6.80 Kg
THIELE-SMALL PARAMETERS
Voice Coil DC Resistance ........... RE 5.15 Ω
Resonance Frequency ............... fs 36.2 Hz
Mechanical Q Factor................. QMS 7.27
Electrical Q Factor................... QES 0.37
Total Q Factor........................ QTS 0.35
Mechanical Moving Mass ............ MMS 183.7 g
Mechanical Compliance............. CMS 105 μm/N
Force Factor .......................... B×l 24.22 Wb/m
Equivalent Acoustic Volume........ VAS 202.0 lt.
Maximum Linear Displacement .... XMAX +/-6.0 mm
Reference Efficiency ................ η0 2.51 %
Diaphragm Area ...................... SD 1164.2 cm2
Losses Electrical Resistance........ RES 102.1 Ω
Voice Coil Inductance @ 1kHz ..... LE 1.56 mH
CONSTRUCTIVE CHARACTERISTICS
Magnet................................. Neodymium
Voice Coil Winding................... Copper
Voice Coil Former.................... Fiberglass
Cone ................................... Paper
Surround............................... Treated Cloth
Dust Dome ............................ Solid Paper
Basket ................................. Aluminium Die-Cast
