Celestion FTR18-4080F
8Ω
Low frequency
| Nominal diameter | 18″ / 457 mm |
| Resonance | 32.5 Hz |
| Q factor | 0.31 |
| Sensitivity | 95.7 dB |
| Linear excursion | ± 6 mm |
| Program power | 1200 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 95.7dB
- Frequency response 30 - 3000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 32.5Hz
- Mechanical quality factor QMS 4.33
- Electrical quality factor QES 0.34
- Total quality factor QTS 0.31
Large signal parameters
- Maximum linear excursion (one way) xmax 6mm
- Air volume displaced at xmax VD 681cm³
- Power handling P 600W
- Program power Pmax 1200W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.3Ω
- Inductance (1kHz) LE 1.25mH
- VC Diameter 100mm
- Winding height HVC 22mm
- Winding material Round copper
- Former material Glass fibre
Magnet
- Force factor Bl 22.5N/A
- Motor constant Bl/√RE 9.75N/√W
- Air gap height HAG 10mm
- Weight 3.1kg
- Material Ferrite
Diaphragm
- Effective diameter 380mm
- Effective area SD 1134cm²
- Moving mass (including air load) MMS 156g
- Moving mass MMD 129g
- Material Glass loaded paper (weather-resistant)
Suspensions
- Stiffness KMS 6.67N/mm
- Compliance CMS 150µm/N
- Equivalent volume to the compliance VAS 281L
- Mechanical resistance RMS 7.34N·s/m
- Surround material Cloth-sealed
Dimensions
- Nominal diameter 18″
- 457mm
- Overall diameter 452mm
- Baffle cutout diameter 416mm
- Overall depth 205mm
- Volume occupied by the driver (estimated) 5.8L
- Net weight 9.7kg
- Frame material Cast aluminium
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Export this driver to a box design software:
Closed Box Simulator·
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SpeakerSim
MfbLabs
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