One more note: Speaker power ratings have a rather nebulous meaning. It should relate to heat dissipation for the voice coils, but sometimes is just wishfull thinking. It is usually based on "Music Power" which may mean a true average power that is as little as 1/10 the peak power. Even if the speaker is correctly rated to handle the heat dissipation, it may not sound very good at that level. In the case of a transistor amp, more is better to prevent clipping. But this is not so much a concern with tubes.
If you like edgy sounding rock, you might keep the amp power rating down to where the amp is a little overdriven at the loudness that you usually listen at! (you would have to determine what that power level is, of course)....
If you like edgy sounding rock, you might keep the amp power rating down to where the amp is a little overdriven at the loudness that you usually listen at! (you would have to determine what that power level is, of course)....