I went from a 5.1 setup to a 7.1 one setup and kept my old Boston Acoustics as rears. My question is are bipolar or dipolars bad for rear surrounds? One of the reasons I am asking is because I was listening to Top Gun in DTS EX and in one scene there were some voices in the rear surrounds and they were garbled and not clear, not sure if it was the speakers or just the movie.