I attended a performance uf the Berlin Philharmonic String Quartet last fall and they were ther most humorless Teutonic stern-faced group I have ever seen. The contempt for the audience was quite evident and this was a performance at The California Institute of Technology which is one of the two most esteemed technical schools in the US. They are my least favorite string quartet. I know this is the opposite of the intention of this thread but I wanted to give my opinion of this group.