Dear All,

I am a new member and I have therefore to apologize since I expect this question may be a widely overseen topic. I would need some help in a topic where in the past I have received totally opposite answers. 

Question is: What is the optimum ratio in between the RMS amp power and the RMS speaker's power of a given system?

Since an amp may be clipping, the amp power should be double as the speaker's, to serve as a protection. Or otherwise, if the amp's power is too high, it can burn the speakers, therefore amp power should be half of the speaker power ¿?

And in between I've heard a series of answers providing non answers, blaming the infinite occurrences that may happen: if power has been defined incorrectly or following different standards, or the case of mismatched impedances, différent drivers' efficiencies, ..., or a miriad excuses used not to provide a real answer. Or the best answer of them all: you have to listen to the actual system to learn if you are happy with its sound ...

Any light into this simple question?

All the best, Alfredo