10 cm (4") HiFi low-midrange driver with coated paper cone, elastic rubber surround and 20 mm voice-coil. Suitable as woofer in mini-speaker systems and due to the very balanced frequency response especially suitable as low-midrange driver in 3-way speakers and in subwoofer/satellite systems.
Technical Data:
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| Rated power | 30 W |
| Maximum power | 50 W |
| Nominal impedance Z | 4 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 | 65 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 | 3,4 Ohm |
| Mechanical Q factor Qms | 3,04 |
| Electrical Q factor Qes | 0,54 |
| Total Q factor Qts | 0,46 |
| Equivalent volume Vas | 4,49 l |
| Effective piston area Sd | 53 cm² |
| Dynamically moved mass Mms | 5,3 g |
| Force factor Bxl | 3,7 Tm |
| Inductance of the voice coil L | 0,5 mH |
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