Visaton K 57 C 8 Ω
5.7 cm (2.2") miniature speaker with waterproofed, transparent Mylar membrane and Neodymmagnet. Light weight. Low installation hight. Can be used outside and at critical enviroments. Suitable as signal speaker at electric mashines. Good speech, intelligibility. *) IP protection class for front side when built into a sealed enclosure
| Brand | Visaton |
| Model | K 57 C 8 Ω |
| Kind | Full range |
| Nominal diameter (mm) | 57 |
| Impedance (Ω) | 8 |
| Rated power (W) | 2 |
| Maximum power (W) | 3 |
| Sensitivity (dB, 1 W/1 m) | 87 |
| Frequency response | 350 Hz – 6800 Hz |
| Resonance frequency, fs (Hz) | 550 |
| 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) | 13 |
| Cutout diameter (mm) | |
| Mounting depth (mm) | |
| Cone material | |
| Magnet material | |
| Weight (kg) | 0.031 |