Beyma 12LW30/N
8Ω
Woofer
| Nominal diameter | 12″ / 300 mm |
| Resonance | 42 Hz |
| Q factor | 0.27 |
| Sensitivity | 94.6 dB |
| Linear excursion | ± 7 mm |
| Program power | 900 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 94.6dB
- Frequency response 40 - 4000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 42Hz
- Mechanical quality factor QMS 3.80
- Electrical quality factor QES 0.29
- Total quality factor QTS 0.27
Large signal parameters
- Maximum linear excursion (one way) xmax 7mm
- Maximum excursion before damage xlim 15mm
- Air volume displaced at xmax VD 378cm³
- Power handling P 450W
- Program power Pmax 900W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 6.3Ω
- Inductance (1kHz) LE 1mH
- VC Diameter 77mm
- Winding height HVC 17.5mm
Magnet
- Force factor Bl 20.2N/A
- Motor constant Bl/√RE 8.05N/√W
- Air gap height HAG 8mm
- Material Neodymium
Diaphragm
- Effective diameter 262mm
- Effective area SD 540cm²
- Moving mass (including air load) MMS 71g
- Moving mass MMD 62.5g
Suspensions
- Stiffness KMS 4.9N/mm
- Compliance CMS 204µm/N
- Equivalent volume to the compliance VAS 84L
- Mechanical resistance RMS 4.9N·s/m
Dimensions
- Nominal diameter 12″
- 300mm
- Volume occupied by the driver (estimated) 1.7L
- Net weight 3.9kg
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