New expensive power cord for amp and no change in sound?

A few thoughts:

1. Can you return it?
2. Is it the same cord as on your preamp?  Have you swapped cords on the pre-amp and amp as an experiment
3. I don't view it as you threw money away if you are enjoying music and the process.  If you can't return it, perhaps you can sell it or even let a friend experiment to gauge their experience.  (I'm making the assumption, you are disappointed but still have a lot of things to be grateful for!)

Without the components and names of the power cords involved this is not a useful thread. I can’t imagine a thread being deleted by naming the components involved. That is the basic function of this forum.

@roxy1927

When I got the Hegel H390 broken in, I I bought the best Pangea high current cord and heard nothing different. I bought several Audience F3 cables and heard no difference. I bought AQ NRD4 (?) cables and heard no change. I have bought a few others also under $500 and have heard no difference.

I have a friend who is going to loan me some Clarus Crimson and Aqua power cords as well as some XLR’s to try. I’ll let you know if they sound different.

immatthewj I'm incapable of believing the high dollar amount is necessary.  I assume they could get 90% of the high dollar benefit for 10% of the cost.  

@immatthewj ,

Wrong roxie...