It all comes down to what you like and listen for in music reproduciton. I have a Kinergetic sub system (2 10" woofers per side driven by passive crossover and 150 watt amp) which offers extreme flexiblity in speaker choice and placement. When using original Quad ESL's the woofers can flank each speaker or the option of many speaker stand arrangments can be used. The Kinergetics also have a dedicated speaker stand for the subs which allow one to use Spica TC 50 optimilly. Their are many excellent chioces for monitors available now as opposed to when the Kinergetics subs were new. The amp in the Kinergetic crossover can be by-passed to allow even ,more flexability for driving the subs ( one which I appreciate as the Kinergetic amps hum a little, I have owed two). My point is, examine how you listen to music (loud? Loud often?) Where (apartment etc.) If you have a restricted listening area I would suggest a good sub system as you can recreate the dynamics better by driving the subwoofers and the monitors with seperate amps. If you have all the room in the world then maybe a full range system is for you. But if you tire of the mids in a full range system you will replace the entire system to correct what you don't like. But then you might find something else amiss with the replacement. In the last ten years I have experiemented with a few speakers as monitors. I find the fewer changes made the better. All of the speakers you mention in your inquiry are good ones. I think what you need is a sub system to make them better.
