Celestion FTR18-4080FDX
Celestion FTR18-4080FDX - 18 inch woofer / LF driver with cast aluminium chassis, ferrite magnet, 96dB sensitivity and very low frequency range 30-1000Hz
| Brand | Celestion |
| Model | FTR18-4080FDX |
| Kind | |
| Nominal diameter (mm) | 457 |
| Impedance (Ω) | 8 |
| Rated power (W) | 800 |
| Maximum power (W) | |
| Sensitivity (dB, 1 W/1 m) | 96 |
| Frequency response | 30 Hz – 1000 Hz |
| Resonance frequency, fs (Hz) | 37.3 |
| DC resistance, Re (Ω) | 5.62 |
| Mechanical Q, Qms | 10.25 |
| Electrical Q, Qes | 0.43 |
| Total Q, Qts | 0.413 |
| Equivalent volume, Vas (l) | 160.74 |
| Effective piston area, Sd (cm²) | 1134.12 |
| Moving mass, Mms (g) | 206.36 |
| Force factor, BL (T·m) | 25.116 |
| Voice coil inductance, Le (mH) | 1.52 |
| Linear excursion, Xmax (mm) | 6 |
| Excursion limit, Xmech (mm) | |
| Voice coil diameter (mm) | 100 |
| Cutout diameter (mm) | 416 |
| Mounting depth (mm) | 205 |
| Cone material | Glass loaded paper (weather-resistant) |
| Magnet material | Ferrite |
| Weight (kg) | 9.8 |