Celestion A4c
| Brand | Celestion |
| Model | A4c |
| Drivers | |
| Woofer | |
| Woofer diameter (mm) | |
| Midrange | |
| Midrange diameter (mm) | |
| Tweeter | |
| Tweeter diameter (mm) | |
| Frequency response | 65 Hz – 20000 Hz +2 −2 dB |
| Enclosure | |
| Sensitivity (dB) | 88 |
| Impedance (Ω) | 4 |
| Recommended amplifier power, least (W) | |
| Recommended amplifier power, most (W) | |
| Built-in amplifier power (W) | |
| Height (mm) | 192 |
| Width (mm) | 660 |
| Depth (mm) | 212 |
| Weight (kg) | 10.7 |