Do not select an amplifier based on wattage ratings, at least not without knowing the associated headroom (+/ X db) at varying impedance loads, or any specs for that matter possibly excepting peak current (amperes) rating and how it responds to your speakers impedance load, not just nominal, but across the entire range. Better to listen to (reliable) users/dealers that have used and can unbiasedly recommend amplifier models that work and sound best with your speakers, or better yet, an in-home audition.
Arnis Balgaris, October 1988, Stereophile Classe’ DR-9 Amplifier review:
"A bare specification of "100wpc into 8 ohms" says almost nothing, at best giving an idea of a starting point."..."For starters, it will double its power output whenever the impedance is halved, down to a 2-ohm limit."
And my all time favorite:
Anthony Cordesman, TAS, Classe’ DR-9 Amplifier review:
"Put it this way: If you can learn anything from technical tests of wattage output and IM and harmonic distortion in a high-powered transistor amplifier, it is because you are buying a piece of garbage."
Nothing further to add.
Best to you Mark,
Dave