Off access they are OK. But since I build my own components they will sound much different that what you can hear form them. The music you selected is why I recommended Vandersteen. Krall sounds amazing on the old model 5's I currently own. They reproduce piano, bass, and drums very well, for big band music, you have a built in sub that provides the big band/classical experience with depth and dimension that you do not get without the sub, plus the time alignment can really benefit from the layering you get with the Vandy's. Separation of instruments is a key benefit for this music. Plus the better components you use in your system with be very noticeable with the Vandersteens. Having the ability to dial in with the cross-over options and sub options helps in different rooms. You also only technically require an amp to really drive the lower mid-range up with the build in sub. Also, resale is also pretty good if/when you decide to make a change.
There are many very good speaker recommendations that others have already posted but my reasons for my suggestion is stated above. Good luck in your search.
Happy Listening.
