Visaton SL 70 NDV 4 Ω
6.5 cm (2.5") full-range speaker with balanced frequency response and increased high-range. Especially suitable as built-in speaker for music and speech reproduction and as driver for slim PA column systems. Water-resistant and robust construction due to various plastic materials. Thanks neodymium extremely light and compact. *) IP protection class for front side when built into a sealed enclosure
| Brand | Visaton |
| Model | SL 70 NDV 4 Ω |
| Kind | Full range |
| Nominal diameter (mm) | 65 |
| Impedance (Ω) | 4 |
| Rated power (W) | 8 |
| Maximum power (W) | |
| Sensitivity (dB, 1 W/1 m) | 86 |
| Frequency response | 150 Hz – 20000 Hz |
| Resonance frequency, fs (Hz) | 220 |
| DC resistance, Re (Ω) | 3.7 |
| Mechanical Q, Qms | 4.9 |
| Electrical Q, Qes | 2.23 |
| Total Q, Qts | 1.53 |
| Equivalent volume, Vas (l) | 0.43 |
| Effective piston area, Sd (cm²) | 21.6 |
| Moving mass, Mms (g) | 0.8 |
| Force factor, BL (T·m) | 1.39 |
| Voice coil inductance, Le (mH) | 0.1 |
| Linear excursion, Xmax (mm) | |
| Excursion limit, Xmech (mm) | 3.8 |
| Voice coil diameter (mm) | 14 |
| Cutout diameter (mm) | 1 |
| Mounting depth (mm) | |
| Cone material | |
| Magnet material | |
| Weight (kg) | 0.061 |