Voltage input / output: 1 One group of AC 16V input for amplifier one group of AC 5V output and input for FM devices (anti-interference); 2 One group of DC 16V input (wide voltage input: 8~18V 16V standard); 3 One group of DC 5V power supply for MP3 / MP4 / MP5 player Output power (left / right channel output): PO at 10% THD+NVDD=16V RL=8ohm 15W/CH (Typical value?); PO at 10% THD+NVDD=16V RL=4ohm 30W/CH (Typical value?) Function adjustment: Volume Bass Treble adjustment? Application in MP3 / MP4 / MP5 player LCD TV home speaker system computer speaker system