Celestion CF1830E
8Ω
Low frequency
| Nominal diameter | 18″ / 457 mm |
| Resonance | 40.5 Hz |
| Q factor | 0.34 |
| Sensitivity | 95.8 dB |
| Linear excursion | ± 5 mm |
| Program Power | 1400 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 95.8dB
- Frequency response 30 - 2500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 40.5Hz
- Mechanical quality factor QMS 4.37
- Electrical quality factor QES 0.37
- Total quality factor QTS 0.34
Large signal parameters
- Maximum linear excursion xmax 5mm
- Air volume displaced at xmax VD 567cm³
- Power handling P 700W
- Program power Pmax 1400W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.3Ω
- Inductance (1kHz) LE 3.24mH
- VC Diameter 75mm
- Winding height HVC 18mm
- Winding material Round Copper
- Former material Glass Fibre
Magnet
- Force factor Bl 24.6N/A
- Motor constant Bl/√RE 10.7N/√W
- Air gap height HAG 8mm
- Material Ferrite
Diaphragm
- Effective diameter 380mm
- Effective area SD 1134cm²
- Moving mass MMS 167g
- Moving mass (without air load) MMD 140g
- Material Glass Fibre
Suspensions
- Stiffness KMS 10.9N/mm
- Compliance CMS 92µm/N
- Equivalent volume to the compliance VAS 168L
- Mechanical resistance RMS 9.33N·s/m
- Surround material Cloth
Dimensions
- Nominal diameter 18″
- 457mm
- Overall diameter 460mm
- Baffle cutout diameter 414mm
- Overall depth 211mm
- Volume occupied by the driver (estimated) 6.8L
- Frame material Cast Aluminium
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