Fostex HP-A3

| Brand | Fostex |
| Model | HP-A3 |
| Frequency response | |
| Total harmonic distortion (%) | 0.04 |
| Signal-to-noise ratio (dB) | |
| Output impedance (Ω) | |
| Gain (dB) | |
| Height (mm) | 36 |
| Width (mm) | 108 |
| Depth (mm) | 140 |
| Weight (kg) |

| Brand | Fostex |
| Model | HP-A3 |
| Frequency response | |
| Total harmonic distortion (%) | 0.04 |
| Signal-to-noise ratio (dB) | |
| Output impedance (Ω) | |
| Gain (dB) | |
| Height (mm) | 36 |
| Width (mm) | 108 |
| Depth (mm) | 140 |
| Weight (kg) |