| Model | DS-420B | 
| Rated power | 20.W | 
| Impedance | 8 Ohm | 
| Transformer tapping | 5-10-20.W/100V | 
| Frequency range | 100Hz-20KHz | 
| SPL (1W/1M) | 87dB | 
| Woofer | 4" | 
| Material | ABS | 
| Dimensions (H*W*D) | 217*170*150 mm | 
| Colour | Black | 
| Model | DS-420B | 
| Rated power | 20.W | 
| Impedance | 8 Ohm | 
| Transformer tapping | 5-10-20.W/100V | 
| Frequency range | 100Hz-20KHz | 
| SPL (1W/1M) | 87dB | 
| Woofer | 4" | 
| Material | ABS | 
| Dimensions (H*W*D) | 217*170*150 mm | 
| Colour | Black |