20 cm (8") woofer with very good price/performance ratio. Suitable for simple 2-way speakers and car rear tray systems. Especially suited as replacement driver for many HiFi speakers.
Technical Data: |
Rated power | 50 W |
Maximum power | 80 W |
Nominal impedance Z | 8 Ohm |
Frequency response | fu–8000 Hz |
(fu: Lower cut-off frequency depending on cabinet) | . |
Mean sound pressure level | 88 dB (1 W/1 m) |
Opening angle (-6 dB) | 49°/4000 Hz |
Excursion limit | +/−10 mm |
Resonance frequency fs | 46 Hz |
Magnetic induction | 1,0 T |
Magnetic flux | 400 µWb |
Height of front pole-plate | 5 mm |
Voice coil diameter | 25 mm |
Height of winding | 9 mm |
Cutout diameter | 185 mm |
Net weight | 1,045 kg |
D.C. resistance Rdc | 6,8 Ohm |
Mechanical Q factor Qms | 2,82 |
Electrical Q factor Qes | 0,80 |
Total Q factor Qts | 0,62 |
Equivalent volume Vas | 51 l |
Effective piston area Sd | 207 cm² |
Dynamically moved mass Mms | 14 g |
Force factor Bxl | 5,6 Tm |
Inductance of the voice coil L | 0,9 mH |