Celestion TN1230
12-inch pressed steelchassis, ferrite magnetbass/mid driver
| Brand | Celestion |
| Model | TN1230 |
| Kind | Woofer |
| Nominal diameter (mm) | 305 |
| Impedance (Ω) | 8 |
| Rated power (W) | 350 |
| Maximum power (W) | |
| Sensitivity (dB, 1 W/1 m) | 97 |
| Frequency response | 50 Hz – 4500 Hz |
| Resonance frequency, fs (Hz) | 46.6 |
| DC resistance, Re (Ω) | 6.09 |
| Mechanical Q, Qms | 4.76 |
| Electrical Q, Qes | 0.37 |
| Total Q, Qts | 0.35 |
| Equivalent volume, Vas (l) | 64.33 |
| Effective piston area, Sd (cm²) | 530.93 |
| Moving mass, Mms (g) | 72.42 |
| Force factor, BL (T·m) | 18.55 |
| Voice coil inductance, Le (mH) | 0.99 |
| Linear excursion, Xmax (mm) | 3.8 |
| Excursion limit, Xmech (mm) | |
| Voice coil diameter (mm) | 75 |
| Cutout diameter (mm) | 283 |
| Mounting depth (mm) | 132 |
| Cone material | Kevlar loaded paper |
| Magnet material | Neodymium |
| Weight (kg) | 2.1 |