... mode is automatically enabled when no signal input is detected. AC 110V or 230V power supply and DC 24V input, separate ... enabled when no signal is detected for saving power electricity* AC 110V or 230V and DC 24V power supply* Balanced line ... speaker output for each channel ModelVA-P120/P240/P350/P500 AC PowerPower220V AC, ±10%, 50/60HzMax Working Current0.7A, 1.4A, 2A, 3A ...