Anyone Upgrade NAD D 3020 Power Cable?


Wondering if this is a worthwhile upgrade considering cost of NAD. If you upgraded the power cord what did you get and what improvement did you hear?

Thanks in advance for your responses.
revreed
Yes, the AC-9s are recommended for amplifiers. However a 2M length of AC-9 would weigh about as as much as the 3020D. I think the weight and stiffness would be difficult to manage in this case. 
I should have added that the AC-14 I mentioned is being sold by Audio Advisor.
@mesch you are right the D3020 is very light so a heavy cord won't work

@mesch @elizabeth the PC connector is a ICE  C5 so I would need an adapter adding another $25 to the cost. I think I will pass on the PC upgrade, especially not knowing if there would be any benefit.

Thanks to all who responded! 
Sorry I forgot the power connector was C5. I had the 3020D in my possession for about a month when it first came out. Should have remembered. I believe Pangea only terminates with C7 and C13 types. NAD does ship there budget amps with some pretty low grade cords, 18ga I have seen.