| Model | BS-633A |
| Frequency response | 120 Hz - 15 kHz (peak -20 dB) |
| Connection | Push-in fitting (bridging terminal) |
| Sensitivity (1 W, 1 m) | 91 dB |
| Speaker component | 12 cm cone type |
| Nominal input (high impedance) | 6 g (including battery), 3 W (70 V) |
| Power selection | Line of 100 V: 1,7 kΩ (6 W), 3,3 kΩ (3 W), 10kΩ (1 W) Line of 70 V: 1,7 kΩ (3 W), 3,3 kΩ (1,5 W), 10kΩ (0,5 W) |
| Operating temperature | - 10 ° C to +50 ° C |
| Finished | ABS resin, off-white (RAL 9018 or equivalent) |
| Dimensions | 173 x 195 x 101 mm (D x H x W) |
| Weight | 0,78 kg |
| Accessory (included) | Loudspeaker mounting screw x 4 |