These two will have completely different presentations, and your current electronics and listening preferences should be the biggest influences in the decision.
The Scansonic MB-B series to me is an incredible speaker for the money. They have a signature similar to many Danish brands, like Raidho, Borresen, Audiovector, Dynaudio. It is very open, transparent, still musical. The ribbon is not as refined as the higher end brands but it is still very good. I’ve heard rooms that was very holographic with them. They project a more forward soundstage.
The Sonus are very appealing / pleasing to listen to but at the expense of some resolution and speed on the frequency extremes. They project a more relaxed soundstage and feel a bit more romantic.
What electronics would you be driving the speakers with?
