Power cord for Electrocompaniet aw250r

Any cords that truly standout when mated with this amp?
we are electro dealers please let me know the rest of your system and we can make some recommendations for you.
All front end equipment is Audioresearch current ref. Martin Logan 15A speakers.
What cables are you using now? Are you using any high end power cables what about power conditioning?

Do you have a budget in mind?

Does Electrocompaniet have a service center in the U.S