Celestion Truvox 0820
8-inch pressed steel chassis, ferrite magnet mid/bass driver
| Brand | Celestion |
| Model | Truvox 0820 |
| Kind | Woofer |
| Nominal diameter (mm) | 200 |
| Impedance (Ω) | 8 |
| Rated power (W) | 250 |
| Maximum power (W) | |
| Sensitivity (dB, 1 W/1 m) | 96 |
| Frequency response | 70 Hz – 6000 Hz |
| Resonance frequency, fs (Hz) | 74.1 |
| DC resistance, Re (Ω) | 6.06 |
| Mechanical Q, Qms | 6.304 |
| Electrical Q, Qes | 0.417 |
| Total Q, Qts | 0.39 |
| Equivalent volume, Vas (l) | 17.25 |
| Effective piston area, Sd (cm²) | 226.98 |
| Moving mass, Mms (g) | 19.49 |
| Force factor, BL (T·m) | 11.51 |
| Voice coil inductance, Le (mH) | 0.543 |
| Linear excursion, Xmax (mm) | 5 |
| Excursion limit, Xmech (mm) | |
| Voice coil diameter (mm) | 50 |
| Cutout diameter (mm) | 184 |
| Mounting depth (mm) | 94 |
| Cone material | Cellulose |
| Magnet material | Ferrite |
| Weight (kg) | 3 |