Visaton TIW 250 XS 8 Ω
25 cm (10") high-end woofer. The extra-wide elastic surround, the long voice coil and particularly large magnet arrangement give this speaker extremely long excursion. Thanks to the multiple venting of the voice coil (pole piece hole, holes in the pole piece plate, cutouts in the aluminium diecast basket to vent the spider from behind) losses and flow noise are minimised.
| Brand | Visaton |
| Model | TIW 250 XS 8 Ω |
| Kind | Woofer |
| Nominal diameter (mm) | 250 |
| Impedance (Ω) | 8 |
| Rated power (W) | 200 |
| Maximum power (W) | 300 |
| Sensitivity (dB, 1 W/1 m) | 89 |
| Frequency response | |
| Resonance frequency, fs (Hz) | 33 |
| DC resistance, Re (Ω) | 5.6 |
| Mechanical Q, Qms | 5.21 |
| Electrical Q, Qes | 0.35 |
| Total Q, Qts | 0.33 |
| Equivalent volume, Vas (l) | 66 |
| Effective piston area, Sd (cm²) | 314 |
| Moving mass, Mms (g) | 49 |
| Force factor, BL (T·m) | 13 |
| Voice coil inductance, Le (mH) | 1.7 |
| Linear excursion, Xmax (mm) | |
| Excursion limit, Xmech (mm) | 14 |
| Voice coil diameter (mm) | 50 |
| Cutout diameter (mm) | 235 |
| Mounting depth (mm) | |
| Cone material | |
| Magnet material | |
| Weight (kg) | 5.3 |