The purpose of using fatter wire in branch circuits is to minimize voltage drop to the receptacle when there is a long run from panel to receptacle. That six feet from receptacle to appliance is trivial. Besides, the wiring from the amp power inlet to the power supply is not 10ga. It might be as thin as 18ga. How far can this iteration possibly go?

@jumia The power cord you need to your amp is by the breaker on the amp, not the panel.

Erik_squires

Don't understand what you're saying here

@jasonbourne52 Wrote:

I am unaware of any amp requiring a 10 gauge power cord. What amp/amps do you have?

My Crown Studio Reference 1 amp has a factory install non detachable 10 AWG power cord and a 30 amp plug. See image below:

Mike