I find that the Wilson sound is anything but bright. If anything, the sound has changed from the WP6 days to a more rolled off highs. But... tweeter ear relationship is critical and the Sophia's don't handle that relationship well as they are not that adjustable. My Maxx IIs have the ability to adjust the head tilt & hence tweeter directionality. I can hear the difference between 2 positions of adjustment instantly (I think there are 14 positions) with ease. Based on your room size and current used Maxx II pricing they are a steel for an upgrade.
I have heard many a different speaker and many have sounded bright and hard at times. But they all benefit from proper tweeter / ear position. Unfortunately not all speakers can do such adjustment but many do compensate with adjustable tweeter outputs.
Now, I use tube amplification which might have something to do with my preference for the Wilson sound (but I doubt 100%, as I have used very high end SS amps with great results) and I find most Be. tweeters to be bright (or hissy) sounding (as a few others have agreed). You will need to let your ears be the judge.
I have heard many a different speaker and many have sounded bright and hard at times. But they all benefit from proper tweeter / ear position. Unfortunately not all speakers can do such adjustment but many do compensate with adjustable tweeter outputs.
Now, I use tube amplification which might have something to do with my preference for the Wilson sound (but I doubt 100%, as I have used very high end SS amps with great results) and I find most Be. tweeters to be bright (or hissy) sounding (as a few others have agreed). You will need to let your ears be the judge.