Visaton 4" HiFi Low Midrange Driver
| Technical Data: | |
|---|---|
| Rated power | 30 W |
| Maximum power | 50 W |
| Nominal impedance Z | 8 Ohm |
| Frequency response | fu–15000 Hz |
| (fu: Lower cut-off frequency depending on cabinet) | . |
| Mean sound pressure level | 86 dB (1 W/1 m) |
| Opening angle (-6 dB) | 86°/4000 Hz |
| Excursion limit | +/−4 mm |
| Resonance frequency fs | 64 Hz |
| Magnetic induction | 1 T |
| Magnetic flux | 250 µWb |
| Height of front pole-plate | 4 mm |
| Voice coil diameter | 20 mm |
| Height of winding | 8 mm |
| Cutout diameter | 94 mm |
| Net weight | 0,49 kg |
| D.C. resistance Rdc | 6,6 Ohm |
| Mechanical Q factor Qms | 3,17 |
| Electrical Q factor Qes | 0,78 |
| Total Q factor Qts | 0,63 |
| Equivalent volume Vas | 5,5 l |
| Effective piston area Sd | 53 cm² |
| Dynamically moved mass Mms | 4,5 g |
| Force factor Bxl | 3,9 Tm |
| Inductance of the voice coil L | 0,9 mH |