The first wire an amp will see it the power cord, if it is a choke point then it will keep the amp from attaining peak performance. Once upon a time I did wire for stereo rooms and made cable. If you do an A/B test with good performing PCs you will find a difference assuming your hearing is good enough. I have used 10 ga exclusively in my system for years. It usually only takes seconds to notice the difference.
Do I need 10 gauge power cord if I have 10 gauge from panel?
I just installed some dedicated circuits with 10 gauge electrical wire. But now I have to consider replacing my amp power cords because they are 14 gauge or higher.
Is this really necessary and any recommendations on quality 10 gauge power cords that I should buy?