Celestion CF1540HD
15-inch, cast aluminium chassis, ferrite magnet LF driver
| Brand | Celestion |
| Model | CF1540HD |
| Kind | Woofer |
| Nominal diameter (mm) | 381 |
| Impedance (Ω) | 8 |
| Rated power (W) | 1200 |
| Maximum power (W) | |
| Sensitivity (dB, 1 W/1 m) | 97 |
| Frequency response | 35 Hz – 2000 Hz |
| Resonance frequency, fs (Hz) | 40.8 |
| DC resistance, Re (Ω) | 5.15 |
| Mechanical Q, Qms | 5.591 |
| Electrical Q, Qes | 0.323 |
| Total Q, Qts | 0.305 |
| Equivalent volume, Vas (l) | 108.3 |
| Effective piston area, Sd (cm²) | 855.3 |
| Moving mass, Mms (g) | 145.53 |
| Force factor, BL (T·m) | 24.4 |
| Voice coil inductance, Le (mH) | 1.22 |
| Linear excursion, Xmax (mm) | 10.5 |
| Excursion limit, Xmech (mm) | |
| Voice coil diameter (mm) | 100 |
| Cutout diameter (mm) | 354 |
| Mounting depth (mm) | 184 |
| Cone material | Glass loaded paper (weather-resistant) |
| Magnet material | Ferrite |
| Weight (kg) | 11.2 |