Murgeshj,
It sounds like your bass issue is more related to room acoustic and speaker placement. My 2.5's are about 9' apart(from the outter side). They are quite close to the side walls (less than 1.5'). 3.5' away from the back wall. Even without foam plugged to the port, I didnt have the boomy bass issue. Bass traps are still must have for me otherwise the mid and high are blurry (by using electrostat's standard). I havent heard Raidho's myself so I cant comment. But I can tell you the MB 2.5's soudstage and the darkness of the background are comparable to a few name brand speakers that I owned or auditioned before. I used to regret selling my Martin Logan and Maggie, but not anymore. I recently audioned some 10k plus speakers and I think 2.5's are still a strong contender in the space. I am not sure whether 2.5's are the right speakers for you or not. But I am sticking with them for now :)