Opinions needed

Thank you all for your replies.

My room is 9,2m x 4,8m
Unfortunately the speakers need to be placed very close to the back and side walls (~20-30cm from back wall and ~40cm from side walls)

Regarding amplification I can use Simaudio Moon 860A, 2x Burmester 911 MKIII or Channel Islands D200MKII

Best regards

10ht,
Your amplifiers will be suitable matches for most of the speakers on your list but not for the Nenuphar.  This very unique speaker will not perform at its potential with low output impedance/high damping factor speakers. This speaker is designed to work (at its best) with high output impedance amplifiers with little or no NFB (Negative feedback) thus low damping factor. . The 6 Moons review amplifier comparisons with the Nenuphar clearly demonstrated this. The Nenuphar is virtually the antithesis of a speaker such as the Raidho  you're also interested in. These two speakers have very different amplifier requirements (And quite likely very different sonic presentations).
Charles 

If you live in Europe, then I recommend you to attend Munich Audio show next May.

https://www.tradefairdates.com/High-End-M4458/Munich.html

It will be a good chance to listen to many speakers that you may want.

Thomas

@10ht   If you would like to learn more about my experience with Cube Audio's Nenuphar, feel free to reach out via PM. - David.