| Model | VA-P2120 | VA-P2240 | VA-P2350 | VA-P2500 | 
| AC power supply |  | 
| Voltage | ~ 220V  50Hz | 
| Working current | 1.4A | 2.6A | 4A | 5.5A | 
| DC power supply |  | 
| DC input | DC~24V; ±20% | 
| Working current | 12.3A | 24A | 35A | 50A | 
| Power | 2x120W | 2x240W | 2x350W | 2x500W | 
| Power Consumption | 295W | 580W | 845W | 1200W | 
| Audio Parameter |  | 
| Input mode | Balance 385mV | 
| Frequency Response | 40Hz-20KHz±3dB | 
| Output | 100V Constant Voltage | 
| THD | ≤1% (Rated Power THD), 1KHz | 
| SNR | ≥90dB | 
| Working Temperature | 5℃ ~ 40℃ | 
| Relative Humidity | < 95% | 
| Cooling Mode | Air-Cooled | 
| Protection | Delay, Short Circuit, Overload, Over-temperature | 
| Dimensions | 484 x 478 x 88mm (Machine feet not included) | 
| Net weight | 9.8Kg | 10.6Kg | 10.26Kg | 10.49Kg |