Beyma 12G40
8Ω
Subwoofer
| Nominal diameter | 12″ / 300 mm |
| Resonance | 44 Hz |
| Q factor | 0.29 |
| Sensitivity | 94.9 dB |
| Linear excursion | ± 7 mm |
| Program Power | 1000 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 94.9dB
- Frequency response 45 - 4000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 44Hz
- Mechanical quality factor QMS 11.60
- Electrical quality factor QES 0.30
- Total quality factor QTS 0.29
Large signal parameters
- Maximum linear excursion (one way) xmax 7mm
- Maximum excursion before damage xlim 28mm
- Air volume displaced at xmax VD 371cm³
- Power handling P 500W
- Program power Pmax 1000W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 6.0Ω
- Inductance (1kHz) LE 2.1mH
- VC Diameter 76.2mm
- Winding height HVC 17.5mm
Magnet
- Force factor Bl 18.4N/A
- Motor constant Bl/√RE 7.51N/√W
- Air gap height HAG 8mm
Diaphragm
- Effective diameter 260mm
- Effective area SD 530cm²
- Moving mass MMS 62g
- Moving mass (without air load) MMD 53.3g
Suspensions
- Stiffness KMS 4.85N/mm
- Compliance CMS 206µm/N
- Equivalent volume to the compliance VAS 81L
- Mechanical resistance RMS 1.5N·s/m
Dimensions
- Nominal diameter 12″
- 300mm
- Overall diameter 312mm
- Baffle cutout diameter 278mm
- Overall depth 133mm
- Volume occupied by the driver (estimated) 2.8L
- Net weight 7.1kg
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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