Scored a pair of Frazier F12-4H's last week and was given a few pairs of speakers with them. (KLH Model 6, Model 20's) When compared to my dad's Klipsch Heresy's, the Fraziers blew my mind. Any info on these speakers? And I also have the option to buy a pair of Frazier Dixielanders and was wondering how they compare to the F12's. Any advice?