Dsper, Your question is a good one and the answer is also of interest to me. I'm just not sure a definitive answer is possible. I have 1.6's in a 14 x 19 x 8 room with the speakers along the short wall, out about 5 feet. I have plans to put 3.7's in this room later this year. I hear you on the soundstage and depth of field. What I have noticed over the last 3 years, with an ongoing series of equipment upgrades, is that the soundstage and depth of field has increased. That tells me the Maggies are not the limitation. I've also noticed a large difference in this regard from one recording to another. Certain recordings give an amazing depth of field. Again that suggests that the Maggies are not the limitation. If you get an amazing depth of field with only one recording, that shows that your equipment can deliver, if the information is present in the recording. I listen to a lot of orchestral and chamber music live. This is a good sanity check. Occasionally, I close my eyes and pretend I'm at home listening to my rig. Live music does not always present with a depth of field that is notable. Sometimes, it presents with much less spatial information than I get through my system. For me, the goal is always to capture the live sound, not improve on it.