SBF18T 18 inch 100mm voice coil high quality speaker

 Throat Diameter :460mm (18in)
 Nominal Impedance :8 ohm
 Power Handling:800W
 Continuous Program Power:1600W
 Sensitivity 1W/1m: 95.2dB
 Frequency Range: 33.67Hz-2.6kHz
 Voice Coil Diameter :100mm /4 inch
Voice Coil Winding Material :Copper
 Voice Coil Winding Depth: 23mm
Magnetic Gap Depth :12mm
Diaphragm Magnet: φ220 Ferrite ring
THIELE & SMALL PARAMETERS:
Resonance Frequency (Fs): 33.67 Hz DC
Resistance (Re): 5.2 ohm
 Mechnical Factor (Qms): 6.907
Eletrical Factor (Qes): 0.414
Total Factor (Qts): 0.391
BL Factor (BL) :23.31 Tesla/m
 Effective Moving Mass (Mms) :204.67 g
 Compliance (Cms): 109.18 um/N
 Equivalent Cas Air Load (Vas) :232.8 dm³
 MOUNTING INFORMATION:
Overall Diameter: 461mm
 Bolt Circle Diameter: 440mm
 Baffle Cutout Diameter: 422mm
 Total Depth: 203mm 		      

big power high quality subwoofer speaker for outdoor performance 1.Imported material 2.Powered 3.Good bass 4.For outdoor performance/bar/conference hall