Just moved - sound destroyed

Dont lose hope ,it took me about 6 months to get everything right with my system,

You need to treat the room with acoustic treatments, the asymetry of speaker positioning is not helping either. Check into Echobusters, RPG, etc.

Loose--your dilemma gets at the heart of what most fail to consider when building a system--the role of the room. In my 25 years in audio I've moved at least 10 times and each time the system was transformed (for good or ill) by the new surroundings. It's gotten to the point where I can tell a good room from a bad one just by spending a few minutes assessing layout, construction materials, etc. When I was going around with my realtor looking at houses when I finally made a purchase she thought I was nuts because there were houses that we saw that met all the "normal" criteria as being a good value but I dismissed because I knew the room would suck soundwise. Having said that you may be able to improve things in a bad room signficantly with time, experimentation and room treatment. Not being able to see the room I was struck by one aspect of your description that caused some concern...."Speakers are positioned so the ports are able to use the rear wall as reinforcement". Condos are notorious for their shoddy construction--the sheet rock is thin the "studs" are typically sheet metal which allows the walls to flex. Ditto for the ceiling. If I were you I would not use speakers that were rear ported and that rely on wall reinforcement for augmenting/tuning the bass. This in my view is a big no no regardless of the room but in your case I'll bet much of your problem lies here. If you are open to a speaker change I would go with something smaller and less full range (I agree with the mantra "big speakers, big problems"). Might I suggest a pair of Harbeth HLP3ES2? There is a pair for sale now on the Agon. Read the reviews and talk to others--this is a great speaker that will do well in a condo situation if placed approximately where your Mystiques are located (i.e. away from the room boundaries). If you are wedded to the Mystiques then certainly be prepared to play around with them in your space (I'd do this first anyway since you will learn somethings about the room that will help if you change speakers). I'd get radical and try different walls with different furniture arrangements. Since it doesn't sound like you have a partner to contend with and have the run of the place go hog wild and see if you can get the sound you are looking for. I've got to believe that you can do better with what you have than the sound you were getting in a tiny bedroom at your other place. Hope this helps.