20 mm (0.8") polycarbonate HiFi driver with round shaped front plate for the highrange above 3000 Hz. Balanced frequency response and good omnidirectional sound distribution. High power handling due to ferrofluid-cooled voice-coil.
Technical Data:
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| Nominal power handling with high pass | 70 W (12 dB/Okt.; 4000 Hz)
50 W (12 dB/Okt.; 2000 Hz) |
| Peak power handling with high pass | 100 W (12 dB/Okt.; 4000 Hz)
80 W (12 dB/Okt.; 2000 Hz) |
| Nominal impedance Z | 4 Ohm |
| Frequency response | 1200–22000 Hz |
| Mean sound pressure level | 90 dB (1 W/1 m) |
| Opening angle (-6 dB) | 84°/8000 Hz |
| Resonance frequency fs | 1900 Hz |
| Magnetic induction | 1,2 T |
| Magnetic flux | 185 µWb |
| Height of front pole-plate | 2,5 mm |
| Voice coil diameter | 20 mm |
| Height of winding | 2 mm |
| Cutout diameter | 64 mm |
| Net weight | 0,24 kg |
| D.C. resistance Rdc | 3,1 Ohm |
| Mechanical Q factor Qms | 3 |
| Electrical Q factor Qes | 0,6 |
| Total Q factor Qts | 0,5 |
| Effective piston area Sd | 3 cm² |
| Dynamically moved mass Mms | 0,2 g |
| Inductance of the voice coil L | 0,09 mH |
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