Hi Guys, need some help. I have a potential buyer in Singapore for the unit. The unit is currently 220 V. Does anyone know whether the primary voltage can be adapted to 110V by simply changing the wiring on the input side of the transformer? Many of the older NAD products used the same transformer for both 115 V and 240 V. It was pre-wired for either/or and it you simply had to disconnect and reconnect the correct wires. ThHanks