I just want to make a quick comment on the relationship between amplifier output power and speaker power handling, in case someone finds this thread looking for advice on the subject. By the way, I service audio equipment for a living.
It is always better to have an amplifier that has more power output than the maximum handling of the speaker it is driving. It may not sound intuitive, but it is true. If you drive a speaker with an underpowered amp, and the amplifier clips (distorts), the heavy high frequency harmonics of the clipped waveform will pass through the crossover and allow a tremendous amount of energy into the tweeter(s)/high frequency drivers. I have seen what happens, which is a thermal failure, i.e. "the magic smoke". When you use an amp with plenty of power, you will, if you overdrive the speaker, usually hear woofer voice coil bottoming noise first, and can back off the volume. One can always install an in-line fuse for some protection. As others have said, ultimately you should trust your ears, if it sounds bad, back it off, or suffer the consequences.