if vocal or song is the main listening, I would keep 950. It has more bass presence, offering a more lively feel . However, classical music, (particularly, symphony, choir) is the main listening, then Stax is the better choice. the soundstage is more 3D and defined, you can tell the position of various instruments more easily. Bass is less "touchy" than 950, but it is there. Say, if there are multi-number of drums on the stage. The...