Visaton FR 7 4 Ω
6.5 cm (2.5") full-range speaker with minimal mounting depth and small magnet. Balanced frequency response and high efficiency. Very good high range response. Suitable in machines and other equipment where space is at a premium.
| Brand | Visaton |
| Model | FR 7 4 Ω |
| Kind | Full range |
| Nominal diameter (mm) | 65 |
| Impedance (Ω) | 4 |
| Rated power (W) | 5 |
| Maximum power (W) | |
| Sensitivity (dB, 1 W/1 m) | 86 |
| Frequency response | 130 Hz – 20000 Hz |
| Resonance frequency, fs (Hz) | 220 |
| DC resistance, Re (Ω) | 3.4 |
| Mechanical Q, Qms | 7.05 |
| Electrical Q, Qes | 3.61 |
| Total Q, Qts | 2.39 |
| Equivalent volume, Vas (l) | 0.4 |
| Effective piston area, Sd (cm²) | 22 |
| Moving mass, Mms (g) | 1 |
| Force factor, BL (T·m) | 1.1 |
| Voice coil inductance, Le (mH) | 0.1 |
| Linear excursion, Xmax (mm) | |
| Excursion limit, Xmech (mm) | 1 |
| Voice coil diameter (mm) | 14 |
| Cutout diameter (mm) | 61 |
| Mounting depth (mm) | |
| Cone material | |
| Magnet material | |
| Weight (kg) | 0.092 |