20 cm (8") High-End woofer with stiff aluminium cone, solid aluminium die-cast basket and elastic rubber surround. Extremely low mechanical and electrical losses due to vented pole plate, vented damper and capton voice coil carrier. Fast pulse response due to light weight aluminium cone. Suitable for 2- and 3-way high end combinations and as low-midrange driver in 4-way high end systems.
| Technical Data: |
|---|
| Rated power | 120 W |
| Maximum power | 180 W |
| Nominal impedance Z | 8 Ohm |
| Frequency response | fu–9000 Hz |
| (fu: Lower cut-off frequency depending on cabinet) | . |
| Mean sound pressure level | 88 dB (1 W/1 m) |
| Opening angle (-6 dB) | 122°/4000 Hz |
| Excursion limit | +/−10 mm |
| Resonance frequency fs | 32 Hz |
| Magnetic induction | 1,3 T |
| Magnetic flux | 930 µWb |
| Height of front pole-plate | 6 mm |
| Voice coil diameter | 38 mm |
| Height of winding | 20 mm |
| Cutout diameter | 190 mm |
| Net weight | 2,5 kg |
| D.C. resistance Rdc | 6,6 Ohm |
| Mechanical Q factor Qms | 3,73 |
| Electrical Q factor Qes | 0,39 |
| Total Q factor Qts | 0,35 |
| Equivalent volume Vas | 77 l |
| Effective piston area Sd | 216 cm² |
| Dynamically moved mass Mms | 21 g |
| Force factor Bxl | 8,8 Tm |
| Inductance of the voice coil L | 1,2 mH |
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