It is becaurse you only use half the current in 220-240V hifi. Watt is watt no matter where you are. So if a amplifier is 220W it only uses 1 Amp. current in europe, but 2 Amp. in the US. So it is twice as hard on the internal of the amp. and there is more heat that needs to get away from the unit.
230V or 110V is just as dangerous. You can die from more than 51V 0,03 Amp.here in europe. Yes, someone even died from at battery 9V. He put his tung on a new battery......
230V or 110V is just as dangerous. You can die from more than 51V 0,03 Amp.here in europe. Yes, someone even died from at battery 9V. He put his tung on a new battery......