I'm thinking of buying a Denon mini system POA, AVR & DVD-F100. I'll be buying it in Korea, use it here for a few months and then take it back to NZ. Problem is that Denon specifies a 220V 60Hz power supply (Korea's), whereas New Zealand's is 230V 50Hz. I'm not worried about the 10V, just the 10Hz. My question... Will it work OK down under? All words of wisdom much appreciated!