Celestion TF1225e
Celestion TF1225e - 300W 12 inch mid bass driver with pressed steel chassis, ferrite magnet, 96dB output sensitivity and a frequency range of 50-3000Hz
| Brand | Celestion |
| Model | TF1225e |
| Kind | Woofer |
| Nominal diameter (mm) | 305 |
| Impedance (Ω) | 8 |
| Rated power (W) | 300 |
| Maximum power (W) | |
| Sensitivity (dB, 1 W/1 m) | 96 |
| Frequency response | 50 Hz – 3000 Hz |
| Resonance frequency, fs (Hz) | 52.6 |
| DC resistance, Re (Ω) | 6.42 |
| Mechanical Q, Qms | 3.513 |
| Electrical Q, Qes | 0.368 |
| Total Q, Qts | 0.333 |
| Equivalent volume, Vas (l) | 67.71 |
| Effective piston area, Sd (cm²) | 530.93 |
| Moving mass, Mms (g) | 54.04 |
| Force factor, BL (T·m) | 17.66 |
| Voice coil inductance, Le (mH) | 1.32 |
| Linear excursion, Xmax (mm) | 5.3 |
| Excursion limit, Xmech (mm) | |
| Voice coil diameter (mm) | 64 |
| Cutout diameter (mm) | 283 |
| Mounting depth (mm) | 139 |
| Cone material | Kevlar loaded paper |
| Magnet material | Ferrite |
| Weight (kg) | 4.4 |