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Visaton Speaker Driver - W 300 - 8 Ohm Woofer
Art. No. 9069
Characteristics and Sound Properties
30 cm (12") woofer with air-dried cone and pressure vented
pole piece. Can be fitted at front or rear. Excellent value for money coupled with very good power-handling capabilities.
Particularly suitable as a replacement for HiFi speakers.
Technical Specifications
| Rated power | 120 W |
| Maximum power | 180 W |
| Nominal impedance Z | 8 Ohm |
| Frequency response (fu: Lower cut-off frequency depending on cabinet) |
fu-2500 Hz |
| Mean sound pressure level | 91 dB (1W/1m) |
| Excursion limit | ± 14 mm |
| Resonance frequency fs | 32 Hz |
| Magnetic induction | 0.95 T |
| Magnetic flux | 1250 uWb |
| Height of front pole-plate | 8 mm |
| Voice coil diameter | 50 mm |
| Height of winding | 18.5 mm |
| Cutout diameter | 280 mm |
| Net weight | 2.8 kg |
| DC resistance Rdc | 6.6 Ohm |
| Mechanical Q factor Qms | 2.68 |
| Electrical Q factor Qes | 0.54 |
| Total Q factor Qts | 0.45 |
| Equivalent volume Vas | 190 litres |
| Effective piston area Sd | 490 cm2 |
| Dynamically moved mass Mms | 43 grams |
| Force factor Bxl | 9.4 Tm |
| Inductance of the voice coil L | 1.8 mH |
| Connections | 4.8 x 0.8 mm (+) 2.8 x 0.8 mm (-) |
Recommended Cabinet Sizes
| Volume / Principle | BR Port | fb | fc / QTC |
| 70 litre / closed | - | - | 62 Hz / 0.87 |
| 100 litre / closed | - | - | 55 Hz / 0.77 |
| 150 litre / closed | - | - | 48 Hz / 0.68 |
| 70 litre / bass reflex | BR 25.50 (length 7 cm) | 36 Hz | - |
| 100 litre / bass reflex | BR 25.50 (length 20 cm) | 32 Hz | - |
| 150 litre / bass reflex | 2x BR 15.34 (length 7 cm) | 29 Hz | - |
fc = System resonance (sealed box system)
QTC = The system's Q at resonance (fc)