Visaton BF 45 S 4 Ω
4.5 cm (1.8") fullrange speaker with black aluminium diaphragm and transparent plastic basket with two mounting holes. Balanced frequency response and very good low range reproduction. Suitable for applications where slim construction and good musik and speech reproduction are requested.
| Brand | Visaton |
| Model | BF 45 S 4 Ω |
| Kind | Full range |
| Nominal diameter (mm) | 45 |
| Impedance (Ω) | 4 |
| Rated power (W) | 4 |
| Maximum power (W) | 8 |
| Sensitivity (dB, 1 W/1 m) | 79 |
| Frequency response | 90 Hz – 20000 Hz |
| Resonance frequency, fs (Hz) | 160 |
| DC resistance, Re (Ω) | |
| Mechanical Q, Qms | |
| Electrical Q, Qes | |
| Total Q, Qts | |
| Equivalent volume, Vas (l) | |
| Effective piston area, Sd (cm²) | |
| Moving mass, Mms (g) | |
| Force factor, BL (T·m) | |
| Voice coil inductance, Le (mH) | |
| Linear excursion, Xmax (mm) | |
| Excursion limit, Xmech (mm) | |
| Voice coil diameter (mm) | 17 |
| Cutout diameter (mm) | 45 |
| Mounting depth (mm) | |
| Cone material | |
| Magnet material | |
| Weight (kg) | 0.032 |