Specifications
| Nominal Diameter | 210 mm (8 in) |
|---|---|
| Nominal Impedance | 8 Ω |
| Frequency Range | 75 Hz – 20000 Hz |
| Minimum Impedance | 6.1 Ω |
| Voice Coil Diameter | 52 mm (2 in) |
| Winding Material | Copper |
| Former Material | Kapton |
| Winding Depth | 16 mm (0.63 in) |
| Magnetic Gap Depth | 8 mm (0.31 in) |
| Flux Density | 1.1 T |
| Woofer Cone Treatment | WP Waterproof Front Side |
| Inductance | 0.14 mH |
| Diaphragm Material | Polyester |
| Magnet Material | Ferrite |
| Fs | 74 Hz |
| Re | 5.2 Ω |
| Qes | 0.39 |
| Qms | 4.1 |
| Qts | 0.36 |
| Vas | 15 dm³ (0.55 ft³) |
| Sd | 220 cm² (34.1 in²) |
| η0 | 1.5 % |
| Xvar | 5.5 mm |
| Mms | 21 g |
| Bl | 11.5 Tm |
| Le | 1.2 mH |
| EBP | 190 Hz |
| Overall Diameter | 225 mm (8.8 in) |
| Bolt Circle Diameter | 210 mm (8.3 in) |
| Baffle Cutout Diameter | 187 mm (7.4 in) |
| Depth | 135 mm (5.3 in) |
| Flange and Gasket Thickness | 11 mm (0.4 in) |
| Net Weight | 4.1 kg (9.04 lb) |
| Shipping Units | 1 pcs |
| Shipping Weight | 4.7 kg (10.36 lb) |
| Shipping Box | 295x314x175 mm (11.61×12.36×6.89 in) |
Manufacturer specifications: 8CX21 at bcspeakers.com.


