Dear @jumia : Speakers does not ask for watts but for current, so watts is useless in your question but manufacturers normally does not gives amp current delivery but watts that has a close relationship in between.
Now, through our audio life normally we can change 2,3 or four times our speakers so to own a high current or high watts amp specs is really favorable. Always is way better the headroom necessary in the amp when the speakers and the SPL we choose need it.
High watts amps does not damage any speaker when low watt amps can do it: clipping and at those SPL your tweeters disappears/destroy.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.
R.