| Brand | ProAc |
| Model | K3 |
| Drivers | midrange drive unit with Kevlar cone and phase plug. |
| Woofer | 2x ProAc 165mm (6.5”) special bass/midrange drive unit with Kevlar cone and phase plug. |
| Woofer diameter (mm) | 165 |
| Midrange | midrange drive unit with Kevlar cone and phase plug. |
| Midrange diameter (mm) | |
| Tweeter | ProAc ribbon with diaphragm as light as a human hair, alnico magnet and rear chamber damping. |
| Tweeter diameter (mm) | |
| Frequency response | 25 Hz – 30000 Hz |
| Enclosure | |
| Sensitivity (dB) | 89 |
| Impedance (Ω) | 4 |
| Recommended amplifier power, least (W) | |
| Recommended amplifier power, most (W) | |
| Built-in amplifier power (W) | |
| Height (mm) | 1073 |
| Width (mm) | 210 |
| Depth (mm) | 340 |
| Weight (kg) | 42 |
