AC Power cable for ARC Ref 5 se.

If you think about it the real reason for using a 20A plug is to prevent someone plugging something that draws 20A into a 15A standard receptacle and overloading the circuit. There's nothing in the design of a 15A plug that makes it unsafe carrying 20A provided the circuit its connected to is rated 20A. 

This is the reason the ARC Manual for the Ref750 (which as you recall will draw 20A) goes at lengths to stress the need to connect it to a 20A circuit ... it seems odd from a safety perspective that they don't simply supply 20A plugs as well ... maybe because Oyaide et al don't make audiophile grade 20A plugs?

folkfreak

... the real reason for using a 20A plug is to prevent someone plugging something that draws 20A into a 15A standard receptacle and overloading the circuit. There's nothing in the design of a 15A plug that makes it unsafe carrying 20A provided the circuit its connected to is rated 20A.

Absolutely agreed. My suggestion to use a cable with a 15A plug on one end and a 20A IEC connector on the other was only intended for components that draw less than 15A, such as ARC preamps. In practice, if that cable were used on a 15A line with a component that actually could demand 20A, the circuit's fuse or circuit breaker should trip. But it's bad practice to rely on a safety device in that fashion.

Just purchased a mint condition used Shunyata Sigma HC 20A  power cord for my ARC Ref 5se. It has not got delivered yet but i will let you know what i think of it compared to the stock PC. 

@tattooedtrackman how was Sigma HC 20A power cord for your ARC Ref 5 se sound compare to other cable you have? I am interesting to looking for one.