20 cm (8") HiFi woofer with strong drive, extended rear pole plate and 35 mm voice-coil for high power handling. Elastic rubber surround and coated paper cone. Recommended cabinets: Volume/Principle BR-Channel fb fc/QTC 15 l/closed - - 70 Hz/0,7 20 l/bass reflex BR 19.24 (length 14 cm) 45 Hz - 30 l/bass reflex BR 19.24 (length 11 cm) 39 Hz - 50 l/bass reflex BR 15.34 (length 13 cm) 33 Hz -
WEEE-reg. no.: DE 79837685
| Rated power | 75 W |
|---|---|
| Maximum power | 115 W |
| Nominal impedance Z | 4 Ohm |
| Frequency response | fu–6000 Hz |
| (fu: Lower cut-off frequency depending on cabinet) | . |
| Mean sound pressure level | 88 dB (1 W/1 m) |
| Opening angle (-6 dB) | 48°/4000 Hz |
| Excursion limit | +/−10 mm |
| Resonance frequency fs | 29 Hz |
| Magnetic induction | 1.1 T |
| Magnetic flux | 600 µWb |
| Height of front pole-plate | 5 mm |
| Voice coil diameter | 35 mm |
| Height of winding | 12 mm |
| Cutout diameter | 184 mm |
| Net weight | 1.5 kg |
| D.C. resistance Rdc | 3.4 Ohm |
| Mechanical Q factor Qms | 3.99 |
| Electrical Q factor Qes | 0.38 |
| Total Q factor Qts | 0.35 |
| Equivalent volume Vas | 65 l |
| Effective piston area Sd | 214 cm² |
| Dynamically moved mass Mms | 28 g |
| Force factor Bxl | 7.7 Tm |
| Inductance of the voice coil L | 1.5 mH |
| Connections | 4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-) |
The SUB W-20.39 is the ideal subwoofer for boosting the bass output of smaller or medium-sized speakers. On the one hand, it is powerful enough to generate driving low-range bass effects in normal rooms and, on the other hand, highly compact. In large rooms or if extremely high bass output is required for longer periods, a second subwoofer of the same type can be added.
If the SUB W-20.39 is to be used in the vicinity of a TV set, then instead of the W 200 S - 4 OHM, we recommend using the magnetically shielded W 200 SC - 4 OHM. This prevents the TV being distorted by the magnetic scatter field.
In addition, it is also possible to use the 8 ohm version of the woofer (W 200 S - 8 OHM, W 200 SC - 8 OHM) if the amplifier used does not allow lower impedance speakers to be connected or if several subwoofers are to be combined.
Not available as a complete kit.
