Beyma CM-6
8Ω
Mid-range
| Nominal diameter | 6.5″ / 165 mm |
| Resonance | 138 Hz |
| Q factor | 0.93 |
| Sensitivity | 90.6 dB |
| Linear excursion | ± 2.5 mm |
| Program Power | 160 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 90.6dB
- Frequency response 150 - 6000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 138Hz
- Mechanical quality factor QMS 4.74
- Electrical quality factor QES 1.16
- Total quality factor QTS 0.93
Large signal parameters
- Maximum linear excursion xmax 2.5mm
- Maximum excursion before damage xlim 10.4mm
- Air volume displaced at xmax VD 35cm³
- Power handling P 80W
- Program power Pmax 160W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 6.0Ω
- Inductance (1kHz) LE 0.6mH
- VC Diameter 38.5mm
- Winding height HVC 7.5mm
Magnet
- Force factor Bl 8.1N/A
- Motor constant Bl/√RE 3.31N/√W
- Air gap height HAG 6mm
- Material Ferrite
Diaphragm
- Effective diameter 134mm
- Effective area SD 140cm²
- Moving mass MMS 14g
- Moving mass (without air load) MMD 12.8g
Suspensions
- Stiffness KMS 11.1N/mm
- Compliance CMS 90.2µm/N
- Equivalent volume to the compliance VAS 2.47L
- Mechanical resistance RMS 2.69N·s/m
Dimensions
- Nominal diameter 6.5″
- 165mm
- Volume occupied by the driver (estimated) 0.89L
- Net weight 2.16kg
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