Okay, I guess I'll chime in here, as we've spoken over email about this, but maybe this will be helpful for others. I own the MS4's and am happy with them. They can be though, as Tvad said, analytical. I find them extremely sensitive to changes up the line (especially with cables) and am going to spend some time trying to find a nice synergy in my system before I entertain switching to something else. They're not necessarily forgiving speakers, and are going to reveal weaknesses in bad recordings, but they do wonderful things with sound-staging, micro-dynamics and vocals. Low-level listening is very pleasant, although I tend to listen at higher volumes. I think given your amplification, most of the speakers you're entertaining will sound good at low levels, because of the Pass's Class A bias.
Now are they the perfect speaker for you, I don't know. I think you should listen to them, but I think that something else to hear is the Verity Parsifal Encore. I really love what these modestly-sized speakers do, especially at low level. They are nothing close to analytical, but are still resolving and articulate. They're pricier new or used, but I think that's a speaker you could be happy with for a long time. It's also nice that you can position the woofer to fire forward or backward depending on your room's setup. They're also beautiful in the Makore finish, IMO.
Enjoy!
Now are they the perfect speaker for you, I don't know. I think you should listen to them, but I think that something else to hear is the Verity Parsifal Encore. I really love what these modestly-sized speakers do, especially at low level. They are nothing close to analytical, but are still resolving and articulate. They're pricier new or used, but I think that's a speaker you could be happy with for a long time. It's also nice that you can position the woofer to fire forward or backward depending on your room's setup. They're also beautiful in the Makore finish, IMO.
Enjoy!