Beyma SM-108
8Ω
Mid Bass
| Nominal diameter | 8″ / 200 mm |
| Resonance | 71 Hz |
| Q factor | 0.32 |
| Sensitivity | 93.2 dB |
| Linear excursion | ± 6 mm |
| Program Power | 300 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 93.2dB
- Frequency response 70 - 6000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 71Hz
- Mechanical quality factor QMS 3.80
- Electrical quality factor QES 0.35
- Total quality factor QTS 0.32
Large signal parameters
- Maximum linear excursion xmax 6mm
- Maximum excursion before damage xlim 11mm
- Air volume displaced at xmax VD 132cm³
- Power handling P 150W
- Program power Pmax 300W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 6.2Ω
- Inductance (1kHz) LE 0.9mH
- VC Diameter 51.7mm
- Winding height HVC 15mm
Magnet
- Force factor Bl 14N/A
- Motor constant Bl/√RE 5.62N/√W
- Air gap height HAG 7mm
- Material Ferrite
Diaphragm
- Effective diameter 167mm
- Effective area SD 220cm²
- Moving mass MMS 24g
- Moving mass (without air load) MMD 21.7g
Suspensions
- Stiffness KMS 4.76N/mm
- Compliance CMS 210µm/N
- Equivalent volume to the compliance VAS 14.4L
- Mechanical resistance RMS 2.8N·s/m
Dimensions
- Nominal diameter 8″
- 200mm
- Overall depth 94mm
- Volume occupied by the driver (estimated) 0.84L
- Net weight 3.1kg
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