how much power

While I might concur to your case Lacee,
I can't imagine swapping to 2...5W amp driving my Aerial 10T. Now they're driven with approx 700W of power in the medium size room with listening distance approx 5.5' and the same between speakers. I'm fairly satisfied with sound, but have to put some effort with acoustic treatments and probably switching to electronic crossover. The built-in one somewhat makes me think that it's not properly balanced.

Hi all ! I was part of thread not too long ago where everyone was adament I could not drive my Thiel 1.6's with my Cary v12 . It was pretty funny as nobody actually had the same amp and speakers but they were looking at the test data on the speakers . So the moral of the story is...you never know until you try it .One other comment about amplifiers , in my experience the same amp model with the lower power rating usually sounds better .

Roxito why not ask people in the speaker forum who have your speaker what they are driving them with and if they may have tried other manufacturers as well;I do not think you should really be just looking at the specs and then buying;what you are trying to find is a proper match of amp to your speaker and maybe the 50 or 100 watt issue does not even come into play.

appreciate the responses.

Get a Kreel amp and you will have all the power you will need. You can never have to much power.