Electrical - Romex Wiring and Other Recommended Enhancements

I'm being told by someone I trust that 15A breakers are far more advisable to avoid the chance of frying wire and house fires. I'm no EE but think that it is true that just because an amp or preamp has a 20A IEC receptacle does not mean you need to feed it 20A for optimum performance. Under all but the most unusual circumstances, your gear will get all the power they need with a 15A breaker. At the end of the day, the capacity of the breaker is about convenience-not having to worry about the breaker tripping. The trade-off is that the higher the amperage of the breaker, the less protection you have. I would rather have the inconvenience of resetting the breaker and the peace of mind. As an insurance lawyer, I have seen first-hand that house fires have occurred due to unnecessarily high amperage breakers.