Not sure if this is the right place or if I should ask Naim directly, but are there any differences between a ND555 sourced from the UK to one sourced in the US? I know the voltage on the 555 PS would be different in the UK but would any of the internally wiring be different as well for the ND555. I am in the US and have a 555PS already but found a ND555 in the UK, just want to see if they would be compatible with one another without having to tweak anything.
I’m not aware if any specific difference between ND555 head units for different territories.
However, be aware that you’ll have no warranty in the US on a unit sourced in the UK and if anything goes wrong with it then it would be considered a “grey” import.
Presumably there is a change for the frequency difference as well (50Hz->60Hz)? I only ask as I understand some houses in America do have 240V 60Hz outlets