L18/6620
Impact subwoofer
4"voice coil, 220mm magnet
650Watt, 97.5dB
Yearly sales: 3000 PCS
Terrific PRO audio subwoofer of compass bass relex
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4"voice coil, 220mm magnet
650Watt, 97.5dB
Yearly sales: 3000 PCS
Terrific PRO audio subwoofer of compass bass relex
Specification
| Nominal Diameter | 460/18 | mm/inch |
| Rated Impedance | 6 | Ohm |
| Nominal Power handling | 650 | Watts |
| Program Power | 1300 | Watts |
| Sensitivity(lw/lm) | 97.5 | dB |
| Frequency Range | 32-2.2K | Hz |
| Minimum Impedance(Zmin) | 5.8 | Ohm |
| Voice Coil Diameter | 100/4 | mm/inch |
| Voice Coil Material | copper | |
| Voice Coil Winding Depth | 23 | mm |
| Number of layers | 2 | |
| Magnet gap depth | 12 | mm |
| Cone Shape | Curved | |
| Surround Shape | M-roll | |
| Basket | Cast Aluminum | |
| Flux Density | 1.0 | T |
| Magnet Material/Mass | Ceramic/3.65 | kg |
| Mounting Information | ||
| Overall Diameter | 461 | mm |
| Bolt Circle Diameter | 439 | mm |
| Bolt Hole Diameter | 6.5 | mm |
| Baffle Cutout Diameter | 424 | mm |
| Overall Depth | 200 | mm |
| Net Weight | 12.1 | kg |
| Thiele-Small parameters | ||
| Fs | 32 | Hz |
| Re | 5.0 | Hz |
| Qms | 13.4 | |
| Qes | 0.35 | |
| Qts | 0.34 | |
| Cms | 0.14 | mm/N |
| Rms | 2.63 | mech-ohm |
| Mms | 174 | gr |
| Eff | 2.7 | % |
| BL | 22.4 | T.m |
| Vas | 292 | liters |
| Sd | 0.1225 | m2 |
| Xmax | 8 | mm |
| LelK | 1.96 | mH |
