hi, I recently listened to the Dyna 52'a and Quad 22L2's. I liked them both for different reasons. But, most important lesson I have learnt recently is that the synergy is very important. Infact, that can totally change the sound. So, what I would recommend is to buy the combo only after listening. If you cannot listen, then go for tried and tested combo. So, in your case none of the combo is a known combo. So, the only way to decide what suits best for you is that if you can tell whats that you like in the music - soundstage, timing, rythm, attack, imaging, tonality etc;
Short opinion on Dyna's are that they are dead neutral and they will reveal your upstream components very much. So, its very tough to pick Dyna's without hearing the whole combination. Quad on the other hand added lot of energy and excitement to the music when I listened it through Cyrus. I would say NAD would pair better as it will tame it a little while Adcom might not be a good choice.
But hear it as much as you can. Even if it means going to another city. Because the buying and selling costs lot more and a lot more hassle than traveling to another city to hear the combo. I suppose for North Bombay should have most of the equipments.