I'm sick of all these generalizations about Martin Logans. First off they are dipole but they do not need to be placed far from the room to sound good in my 19x13 room I have them on the long wall the center of the stator is 28 inches from the back wall, so less then 2.5 ft, I prefer this location to 4 ft out because the bass is tighter, at least in my room, second off anyone who says the bass isn't up to speed hasn't heard any of their recent systems, people must be refering to the old Monoliths with those huge 12 inch woofers, the new generation has amazingly fast woofers. Infact I prefer the bass of the Ascent to the Nautilus 803, 804. I have owned all of those speakers so I think I can speak for them. Now as far as the Nautilus series versus the Martin Logans, well I wanted to like the 803s, I really did, their a beautiful piece of work to touch and feel but when listening to them there was to my ears a slight midbass hump, I moved them everywhere in my room to get rid of this, but was unable to, now that I think of it if I had a more powerful amp at hand it might have solved the problem, however that midbass hump aside, I moved on to the Logans because of it had a far superior midrange and there was just more air that could be heard, with the Ascents I saw performers playing, where as with the Nautilus I heard sound between the speaker. Thats just my opinion, I would also suggest you listen to a pair of Thiel 2.4s, if your looking for a dyanmic speaker I think those are far superior to the 803s and sound on par with the Ascents with a better highs because of the extended treble from the tweeter.