Visaton BZ 300 4 Ω
30 cm (12") subwoofer featuring a coated cone and a solidly constructed metal basket. To provide long cone strokes and high power handling, the driver is equipped with an extended rear pole-plate. Due to the 50 mm voice coil the BZ 300 is suited for high power operation. Suitable for free-air-operation as well as driver for band-pass and vented enclosures.
| Brand | Visaton |
| Model | BZ 300 4 Ω |
| Kind | Subwoofer |
| Nominal diameter (mm) | 300 |
| Impedance (Ω) | 4 |
| Rated power (W) | 350 |
| Maximum power (W) | 450 |
| Sensitivity (dB, 1 W/1 m) | 92 |
| Frequency response | |
| Resonance frequency, fs (Hz) | 36 |
| DC resistance, Re (Ω) | 3.6 |
| Mechanical Q, Qms | 5.46 |
| Electrical Q, Qes | 0.53 |
| Total Q, Qts | 0.4 |
| Equivalent volume, Vas (l) | 129 |
| Effective piston area, Sd (cm²) | 510 |
| Moving mass, Mms (g) | 53.3 |
| Force factor, BL (T·m) | 9.26 |
| Voice coil inductance, Le (mH) | 0.93 |
| Linear excursion, Xmax (mm) | |
| Excursion limit, Xmech (mm) | 20 |
| Voice coil diameter (mm) | 50 |
| Cutout diameter (mm) | 280 |
| Mounting depth (mm) | |
| Cone material | |
| Magnet material | |
| Weight (kg) | 4.5 |