Description
B&C's 18SW115 18" pro subwoofer speaker with an oversized 4.5" voice coil, 1,700 watts RMS power handling capacity, neodymium motor.
| Nominal Diameter | 460 mm (18.0 in) | 
| Nominal Impedance | 4 Ω | 
| Minimum Impedance | 4.1 Ω | 
| Nominal Power Handling | 1700 W | 
| Continuous Power Handling | 3400 W | 
| Sensitivity | 96.0 dB | 
| Frequency Range | 35 - 1500 Hz | 
| Voice Coil Diameter | 116 mm (4.5 in) | 
| Winding Material | Copper | 
| Former Material | Glass Fibre | 
| Winding Depth | 34 mm (1.33 in) | 
| Magnetic Gap Depth | 14 mm (0.55 in) | 
| Flux Density | 1.16 T | 
| Design | |
| Surround Shape | Triple Roll | 
| Cone Shape | Radial | 
| Magnet Material | Neodymium Inside Slug | 
| Spider | Double Silicone | 
| Pole Design | T-Pole | 
| Woofer Cone Treatment | TWP Waterproof Both Sides | 
| Recommended Enclosure | 150.0 dm3 (5.3 ft3) | 
| Recommended Tuning | 35 Hz | 
| Parameters | |
| Resonance Frequency | 34 Hz | 
| Re | 3.3 Ω | 
| Qes | 0.31 | 
| Qms | 6.1 | 
| Qts | 0.3 | 
| Vas | 149.1 dm3 (5.27 ft3) | 
| Sd | 1210.0 cm2 (187.6 in2) | 
| η₀ | 1.8 % | 
| Xmax | 14.0 mm | 
| Xvar | 16.0 mm | 
| Mms | 304 g | 
| Bl | 26.0 Txm | 
| Le | 1.36 mH | 
| EBP | 109 Hz | 
| Mounting Info | |
| Overall Diameter | 460 mm (18.0 in) | 
| Bolt Circle Diameter | 443 mm (17.44 in) | 
| Baffle Cutout Diameter | 422.0 mm (16.6 in) | 
| Depth | 242 mm (9.5 in) | 
| Flange and Gasket Thickness | 16 mm (0.62 in) | 
| Air Volume Occupied by Driver | 10.5 dm3 (0.37 ft3) | 
| Net Weight | 11.9 kg (26.2 lb) | 

 
                        
                       
                    