Amp and Preamp recommendations for Yamaha NS5000

Luxman pre + power.

These speakers like a lot power so maybe the all new Bladelius Audio Oden Integrated amp... 

 http://highfidelity.pl/@main-998&lang=en

Luxman m900u looks good. Going to take a hard look at it.
Also musical fidelity seems a great value thanks.
And ya I agree it seems these are speakers that need power so I am confused by the recommendation of 25 watts per channel class A? Just because I am in a smaller room. Wouldn't that still impair the full voice of the speaker even at low levels?
I admit 1 problem I had with the speaker is the soundstage tends to collapse a bit at low listening volumes so I do wonder if a higher quality amp can fix that. Might just be inherent in the design?

There is nothing in the measurements to suggest that the NS5000s need a lot of power.In fact they indicate the opposite.I do suspect however they might be better with low /no negative feedback lowish damping factor amps.A medium powered push pull tube amp even.

@jtgofish  Can you elaborate? Are you referring to the impedence curve? Also thoughts on Yamaha saying 'normal input 200 watts'.