Heavy Duty 18 Inch Professional Audio Best Pro Speaker Subwoofer
Product main features:
- 18 inch PA speaker
- Ideal for subwoofer
- 900W RMS, 98dB
- 4 inch voice coil, 220mm dual magnets
- Subwoofer is ideal for high quality professional bass reflex and bass horn systems
Product main features:
- 18 inch PA speaker
- Ideal for subwoofer
- 900W RMS, 98dB
- 4 inch voice coil, 220mm dual magnets
- Subwoofer is ideal for high quality professional bass reflex and bass horn systems
| General Specifications | ||
| Nominal Diameter | 460/18 | mm/inch |
| Rated Impedance | 8 | ohm |
| Nominal Power handling | 900 | Watts |
| Program Power | 1800 | Watts |
| Sensitivity(lw/lm) | 97 | dB |
| Frequency Range | 33.4-1.8K | Hz |
| Minimum Impedance(Zmin) | 5.6 | ohm |
| Voice Coil Diameter | 100/4 | mm/inch |
| Voice Coil Material | copper | |
| Number of layers | 2 | |
| Magnet gap depth | 14 | mm |
| Surround Shape | W-roll | |
| Basket | Cast Aluminum | |
| Magnet | 220*2 Ferrite | |
| Mounting Information | ||
| Overall Diameter | 469 | mm |
| Bolt Circle Diameter | 448 | mm |
| Baffle Cutout Diameter | 424 | mm |
| Overall Depth | 236 | mm |
| Net Weight | 18.85 | kg |
| Shipping weight | 20.1 | kg |
| Shipping Box | 490*490*260 | mm |
| Thiele-Small Parameters | |||
| Resonance frequency | 33.4 | 35.5 | Hz |
| DC resistance | 5.6 | 5.6 | ohm |
| Mechanical factor | 9.89 | 4.99 | |
| Electrical factor | 0.44 | 0.41 | |
| Total factor | 0.42 | 0.38 | |
| Mechanical compliance | 0.09 | 0.06 | mm/N |
| Mechanical resistance | 5.5 | 15.6 | mech-ohm |
| of suspension losses | |||
| Effective Moving Mass | 261.4 | 349.2 | gr |
| Half-space efficiency | 1.43 | 1.21 | % |
| BL Factor | 26.5 | 32.6 | T.m |
| Equivalent Cas air load | 173.9 | 115.2 | liters |
| Voice-coil inductance | 1.1 | 1.2 | mH |