PSB Speakers Alpha B1 Specification
| System type | 2-way |
| Enclosure type | Bass-reflex |
| Frequency response ± 3dB | 65 - 21000 Hz |
| Nominal impedance | 8 Ohm |
| Amplifier Requirements | 10 - 90 W |
| Sensitivity (2.83V/1m) | 89 dB |
| Tweeter | 19 mm (3/4 in.) |
| Woofer | 133 mm (5.25 in.) |
| Dimensions (H x W x D) | 299 x 178 x 247 mm / 11.77 x 7.01 x 9.72 in. |
| Weight | 4,6 kg / 8.8 lbs. |
