China 18 Inch Bass Subwoofer Audio Woofer Lf Speaker Driver Loudspeaker, Find details about China Professional Woofer, Professional Loudspeaker from 18 Inch Bass Subwoofer Audio Woofer Lf Speaker Driver Loudspeaker
General Specifications | ||
Nominal Diameter | 18 | mm/inch |
Rated Impedance | 8 | ohm |
Nominal Power handling | 650 | Watts |
Program Power | 1300 | Watts |
Sensitivity(lw/lm) | 99 | dB |
Frequency Range | 40.8-1.5K | Hz |
Minimum Impedance(Zmin) | 5.6 | ohm |
Voice Coil Diameter | 100/4 | mm/inch |
Voice Coil Material | Cooper | |
Number of layers | 2 | |
Magnet gap depth | 12 | mm |
Surround Shape | W-roll | |
Basket | Cast Aluminium | |
Magnet | 220 Ferrite | |
Mounting Information | ||
Overall Diameter | 468 | mm |
Bolt Circle Diameter | 445 | mm |
Baffle Cutout Diameter | 424 | mm |
Overall Depth | 212 | mm |
Net Weight | 12.9 | kg |
Shipping weight | 14.1 | kg |
Shipping Box | 490*490*250 | mm |
Thiele-Small Parameters | |||
Resonance frequency | Fs | 40.8 | Hz |
DC resistance | Re | 5.6 | ohm |
Mechanical factor | Qms | 5.93 | |
Electrical factor | Qes | 0.56 | |
Total factor | Qts | 0.51 | |
Mechanical compliance | Cms | 0.09 | mm/N |
Mechanical resistance | Rms | 7.2 | mech-ohm |
of suspension losses | |||
Effective Moving Mass | Mms | 167.5 | gr |
Half-space efficiency | Eff | 2.13 | % |
BL Factor | BL | 20.7 | T.m |
Equivalent Cas air load | Vas | 181.8 | liters |
Voice-coil inductance | LelK | 37 | mH |