Power Cables and Wall Sockets

If you amp is causing lights to dim you have an extreme power problem.  If the lights are dimming significantly, the circuit is overloaded, the breaker should be tripping.  The circuit is overloaded.  There is an increased fire risk.  Jerry

I believe 14 gage Romex is white , 12 gage is yellow and 10 gage is orange 

If you amp is causing lights to dim you have an extreme power problem. If the lights are dimming significantly, the circuit is overloaded, the breaker should be tripping. The circuit is overloaded. There is an increased fire risk. Jerry

We do not know that for sure…
I used to turn on a table saw and the light in the garage would go out when it started up.
(Yeah the birds jumped off of the wire with hot feet.)

But if there is 30A on a 40A feed from the pole, and only 12A on a 15A breaker, it does not mean a fire is imminent. That is what people use breakers and fuses for.

It just means that the voltage sags.

There are VERY, VERY few, if any, HIFI systems that one could hear the difference a 3' piece of high voltage AC cable could make. And even less "ears" to hear the difference. I truly believe this is a "visual" improvement .

 "I can't see the 100' of feet of wire in the walls, so it is fine......But that black rubber 36" power cord has to go........

There are actually very many systems and listeners that can identify the difference power cords make. It seems counterintiutive that a couple of meters of cable can make a difference, but many listeners find the difference audible. There are plenty of other threads as to the empirical reasons for this.

However, in order of priority and value for money, it makes sense to ensure that the wiring and sockets that precede the mains cord are up to scratch. The case of the dimming lights that prompted this particular thread exemplifies this perfectly.