Power cord supplied with Luxman L-509X Integrated Amp

Why would a manufacturer of high end audio components provide anyone with a power cord which would degrade the sound of their product?

Ignorance of the impact power cords can have, adherence to UL minimum standards for safety, and profit maximizing selection of components.

Ask MC… I’m sure an acquisition of the best available then painted one way only in rubberized black will net  a Sonic improvement.

See Cullen cables

MC recommends this PC.
https://www.moneoone.com/product/supernova/
The only thing I don't understand is why Luxman don't include one with every integrated they sell.

The power cord looks really cheap for such a quality amp. A polarized 2 prong male end to plug into the wall and only 2 prongs on the amp. What can I replace this with and not be unsafe? Seems all aftermarket power cables have 3 prongs.

There is nothing unsafe about what you have now. Millions of homes are wired that way, and even more appliances. There are even power cords that LOOK like they have a ground, that is you see a ground pin on the plug, but they are not grounded because nothing is connected inside. They do this because it is one of the easiest ways to improve the sound of any power cord.  

Jeff Smith of Silversmith was at my place recently. Jeff recommends this and even carries around a cheater plug to demonstrate. Sure enough the cheap black rubber power cord everyone gets for free did sound better than expected when used with the cheater plug. So if you already have no ground then don't expect as much improvement as you otherwise would get going from black crap to a quality aftermarket PC. It will be better, just not as much as otherwise.