Fostex W300AII
8Ω
Woofer
Nominal diameter | 12″ / 300 mm |
Resonance | 25 Hz |
Q factor | 0.28 |
Sensitivity | 92.5 dB |
Linear excursion | ± 6.5 mm |
Program Power | 150 W |
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- Sensitivity (1W, 1m, infinite baffle) SPL1W 92.5dB
- Frequency response 25 - 3000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 25Hz
- Mechanical quality factor QMS 9.17
- Electrical quality factor QES 0.29
- Total quality factor QTS 0.28
Large signal parameters
- Maximum linear excursion xmax 6.5mm
- Air volume displaced at xmax VD 350cm³
- Power handling P 50W
- Program power Pmax 150W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 7.0Ω
- Inductance (1kHz) LE 0.1mH
- VC Diameter 80mm
Magnet
- Force factor Bl 18.8N/A
- Motor constant Bl/√RE 7.09N/√W
- Weight 1.1kg
- Material Alnico
Diaphragm
- Effective diameter 262mm
- Effective area SD 539cm²
- Moving mass MMS 92.7g
- Moving mass (without air load) MMD 83.8g
Suspensions
- Stiffness KMS 17.9N/mm
- Compliance CMS 56µm/N
- Equivalent volume to the compliance VAS 227L
- Mechanical resistance RMS 1.59N·s/m
Dimensions
- Nominal diameter 12″
- 300mm
- Overall diameter 317mm
- Baffle cutout diameter 280mm
- Overall depth 180mm
- Volume occupied by the driver (estimated) 3.2L
- Net weight 6.3kg
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