Totem Mani 2 sig what do you think?

A few weeks ago I listened to a set of Totem mani 2 speaker at a dealer. I brought my own amp because I heard the mani 2 sig can be somewhat demanding of the amp. To my ears and to those of my girlfriend the combo sounded very good indeed.

But in my head I heard the little voice "Mani 2 speakers need more power then my amp because that is what I read at all the fora and reviews". Now my question is. Is the mani 2 really all that demanding of the amp. Is there a nog difference between the current and older models of the mani 2. Would my amp of aprox 100W into 8 ohm really be up to the job. Are the speakers on the markt that can deliver such a nice powerful bass, and such an open mid. My only concern was the high of the mani 2. My living/listing room is about 27 square meter so that is rather small so huge speakers that take up a lot of room are out of the question.

So any tips and or advise?