Celestion NTR08-2009D
Celestion NTR08 2009D - 8 inch neodymium driver with cast aluminium chassis, neo magnet, 94.5dB output sensitivity and a frequency range of 70-5000Hz
| Brand | Celestion |
| Model | NTR08-2009D |
| Kind | Woofer |
| Nominal diameter (mm) | 203 |
| Impedance (Ω) | 8 |
| Rated power (W) | 200 |
| Maximum power (W) | |
| Sensitivity (dB, 1 W/1 m) | 94.5 |
| Frequency response | 70 Hz – 5000 Hz |
| Resonance frequency, fs (Hz) | 71.4 |
| DC resistance, Re (Ω) | 5.5 |
| Mechanical Q, Qms | 2.035 |
| Electrical Q, Qes | 0.236 |
| Total Q, Qts | 0.211 |
| Equivalent volume, Vas (l) | 11.65 |
| Effective piston area, Sd (cm²) | 226.98 |
| Moving mass, Mms (g) | 31.06 |
| Force factor, BL (T·m) | 18.03 |
| Voice coil inductance, Le (mH) | 0.48 |
| Linear excursion, Xmax (mm) | 6.5 |
| Excursion limit, Xmech (mm) | |
| Voice coil diameter (mm) | 50 |
| Cutout diameter (mm) | 187 |
| Mounting depth (mm) | 100 |
| Cone material | Kevlar loaded paper (weather-resistant) |
| Magnet material | Neodymium |
| Weight (kg) | 2.8 |