vandersteen 3a signature or thiel 2.4 or 2.3

With all due respect to the other posters I think your gear will do fine with the Thiels. I think the Thiels more immediate sound will come closer to replicating the sound where most live jazz is heard, i.e. jazz clubs. I think the Vandersteens are fussier with regard to placement. The Thiels fussier regarding associated equipment, especially amps. Again, I think your gear will do fine. The Thiels are a bit more forward and crisp, the Vandersteens more laid back and rich. The Thiels probably have less depth but more definition in the bass region and visa versa the Vandersteens. I find plucked bass better on the Thiels and bowed bass better on the Vandersteens. The Thiels have a more forward and extended top end, something that bothers some people, the Vandersteens a sweeter top end, that to some may lack that last degree of transparency. IMHO since your gear isn't an issue, it's just a matter of room and taste. Both are truly excellent products. If you are drwan to these you might also want to consider Dunlavy or Green Mountain. Good luck.

The more I think about it the more I think your gear might be better suited to Thiels than Vandersteens. You might want to also add Meadowlark to the list.