I listen to & judge by classical, so I'll chip in & further confuse the issue:)
Keeping in mind the need to reproduce large orchestral passages (including choirs) at realistic levels, the Nautilus is undoubtedly (IMO) the choice. It can give the illusion of a full-scale orchestra. The Wilson gives the impression of a "smaller" speaker more prone to "confusion" when the going gets very tough (think of Mahler: 8/2 for example).
OTOH, the Wilson is MUCH easier to drive coherently and, while the lower end starts rolling off @~60Hz, the sonic result is pleasing overall and in-room response didn't seem to be lacking (you won't be craving for bass I don't think).
The problem with the Nautilus seems to be that the lower register sucks up an extraordinary amount of amp power. So you need a lot of amp power. Otherwise, you end up driving the mid-bass without power left for the bass, hence the upper bass "hump" reported above (and of course, the resulting impression of lack in mid/upper mid detail). To give an example, the Nautilus driven by two 125W "deep" class Α amps, was indeed far better than the Sophia.
So, overall, given your present amplification, I suggest you compromise & go for the Sophia; don't expect a large-scale orchestra & a full-range speaker -- Wilson wouldn't be selling the Alexandrias & Maxx's if that were the case.
Finally, as to personal bias, I actually like the Sophia (no, I don't own Sophia's). It's a good speaker, if a bit expensive. Cheers
Keeping in mind the need to reproduce large orchestral passages (including choirs) at realistic levels, the Nautilus is undoubtedly (IMO) the choice. It can give the illusion of a full-scale orchestra. The Wilson gives the impression of a "smaller" speaker more prone to "confusion" when the going gets very tough (think of Mahler: 8/2 for example).
OTOH, the Wilson is MUCH easier to drive coherently and, while the lower end starts rolling off @~60Hz, the sonic result is pleasing overall and in-room response didn't seem to be lacking (you won't be craving for bass I don't think).
The problem with the Nautilus seems to be that the lower register sucks up an extraordinary amount of amp power. So you need a lot of amp power. Otherwise, you end up driving the mid-bass without power left for the bass, hence the upper bass "hump" reported above (and of course, the resulting impression of lack in mid/upper mid detail). To give an example, the Nautilus driven by two 125W "deep" class Α amps, was indeed far better than the Sophia.
So, overall, given your present amplification, I suggest you compromise & go for the Sophia; don't expect a large-scale orchestra & a full-range speaker -- Wilson wouldn't be selling the Alexandrias & Maxx's if that were the case.
Finally, as to personal bias, I actually like the Sophia (no, I don't own Sophia's). It's a good speaker, if a bit expensive. Cheers