Celestion TSQ2145
21-inch cast aluminium chassis neodymium magnet low frequency loudspeaker
| Brand | Celestion |
| Model | TSQ2145 |
| Kind | Woofer |
| Nominal diameter (mm) | 530 |
| Impedance (Ω) | 8 |
| Rated power (W) | 1800 |
| Maximum power (W) | |
| Sensitivity (dB, 1 W/1 m) | 97 |
| Frequency response | 30 Hz – 1000 Hz |
| Resonance frequency, fs (Hz) | 30 |
| DC resistance, Re (Ω) | 5 |
| Mechanical Q, Qms | 8.393 |
| Electrical Q, Qes | 0.359 |
| Total Q, Qts | 0.344 |
| Equivalent volume, Vas (l) | 253.8 |
| Effective piston area, Sd (cm²) | 1661.9 |
| Moving mass, Mms (g) | 435.2 |
| Force factor, BL (T·m) | 33.8 |
| Voice coil inductance, Le (mH) | 3.91 |
| Linear excursion, Xmax (mm) | 15 |
| Excursion limit, Xmech (mm) | 80 |
| Voice coil diameter (mm) | 115 |
| Cutout diameter (mm) | 505 |
| Mounting depth (mm) | 250 |
| Cone material | Glass loaded cellulose, water-resistant coating front & back |
| Magnet material | Neodymium |
| Weight (kg) | 13.8 |