Visaton WS 20 E 4 Ω
20 cm (8") HiFi woofer with polypropylene cone. Due to balanced frequency response curve suitable as low-midrange driver for large 4-way speaker systems. Due to the special basket design suitable as replacement driver for many HiFi speakers.
| Brand | Visaton |
| Model | WS 20 E 4 Ω |
| Kind | Woofer |
| Nominal diameter (mm) | 200 |
| Impedance (Ω) | 4 |
| Rated power (W) | 80 |
| Maximum power (W) | 120 |
| Sensitivity (dB, 1 W/1 m) | 88 |
| Frequency response | |
| Resonance frequency, fs (Hz) | 47 |
| DC resistance, Re (Ω) | 3.3 |
| Mechanical Q, Qms | 5.56 |
| Electrical Q, Qes | 1.44 |
| Total Q, Qts | 1.14 |
| Equivalent volume, Vas (l) | 39 |
| Effective piston area, Sd (cm²) | 240 |
| Moving mass, Mms (g) | 23 |
| Force factor, BL (T·m) | 4.5 |
| Voice coil inductance, Le (mH) | 0.7 |
| Linear excursion, Xmax (mm) | |
| Excursion limit, Xmech (mm) | 6 |
| Voice coil diameter (mm) | 30 |
| Cutout diameter (mm) | 186 |
| Mounting depth (mm) | |
| Cone material | |
| Magnet material | |
| Weight (kg) | 1.3 |