I have never heard anything from Dali that I liked, when compared to similar priced competition. They are more about looks than sound in my experience. Admittedly, it has been a few years. I doubt things have changed though. KEF has really built a nice reputation and the LS50 is an important part of that. Let me know what you think after the demo. Remember, when demoing, always bring your music and always listen to each track All the way through. If you don't want to finish the song then there is likely an issue. The issue might be in differing electronics, but it is the clearest sign of strain.