APBMW S8-4.2 Subwoofer Driver | 300 W Peak Power | 200 mm | 4 ohm
The 200 mm (8 in.) APBMW S subwoofers allow a direct replacement of the OEM speakers underneath the front seats, making the most of the factory acoustic load and generating deep and crisp low frequencies. The Neodymium magnet allows for greater power and control than ferrite while maintaining the depth of installation unaltered.
Technical Specs
| Nominal diameter | 200 mm (8 in) |
| Impedance | 4 Ohm |
| Power Handling - Peak | 300 W |
| Power Handling - Continuous | 150 W |
| Sensitivity | 88 dB |
| Frequency Response | 40-500 Hz |
| Voice Coil Ø | 50 mm |
| Chassis Material | PLASTIC |
| Magnet Material | NEODYMIUM |
| Magnet size D x d x h | 48x18x7 mm mm (in.) |
| Voice Coil Material | COPPER |
| Cone Material | PRESSED PAPER CONE |
| Surround Material | RUBBER |
| Xmax | 7 mm (0.28 in) |
| Xmech | 10 mm (0.39 in) |
| Driver Displacement Volume | 1.2 l (0.042 ft) |
Electric-acoustic Specs
| D | 198.6 cm² (30.783 in²) |
| Re | 3.8 Ohm |
| Fs | 40 Hz |
| Le | 0.5 mH |
| Vas | 21 l (0.742 ft) |
| Mms | 43 g (1.517 oz) |
| Cms | 0.41 mm/N |
| BL | 6.3 T•m |
| Qts | 0.65 |
| Qes | 0.96 |
| Qms | 2 |
| Reference Efficiency | 0.13 |
General
| Weight | 1.21 kg |
Dimensions
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|
| Dimension A1 | 217 mm (8.54 in) |
| Dimension A2 | 239 mm (9.41 in) |
| Dimension B | 191 mm (7.52 in) |
| Dimension C | 55.2 mm (2.17 in) |
| Dimension D | 32 mm (1.26 in) |
| Dimension U | 229 mm (9.02 in) |
| Dimension V | 5 mm (0.2 in) |
Features
- Developed with electroacoustic parameters customized for BMW-Mini to increase listening engagement, through powerful and crisp low frequencies, exploiting the acoustic load provided by the factory box.
- Neodymium Magnetic group with an inverted acoustic structure featuring an internal cone, to maximize performance while minimizing bulk and weight.
- 38 mm voice coil wound on aluminum support for considerable power dissipation and stability even during high excursions.
- Two 5 mm gaskets were provided for OEM placements.
- 2-ohm configuration for maximum output in combination with AP 8.9 bit in active multi-amplification.
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