Fostex BK40H
| Brand | Fostex |
| Model | BK40H |
| Drivers | 40mm full-range unit |
| Woofer | |
| Woofer diameter (mm) | |
| Midrange | |
| Midrange diameter (mm) | |
| Tweeter | |
| Tweeter diameter (mm) | |
| Frequency response | 100 Hz – 32000 Hz |
| Enclosure | Horn |
| Sensitivity (dB) | 78 |
| Impedance (Ω) | 8 |
| Recommended amplifier power, least (W) | |
| Recommended amplifier power, most (W) | |
| Built-in amplifier power (W) | |
| Height (mm) | |
| Width (mm) | |
| Depth (mm) | |
| Weight (kg) | 0.95 |