I have to say that these speaker be awesome ! I originally have Sony BDV-E570 Blu Ray Home theater system , and I think I have good sound . then I ask a home theater installer what the difference be between use a power sub and a avr versus what I have . he answer , `` night and day '' . I research speaker and choose this set , and a Yamaha AVR . after tuning the speaker with the Equalizer and YPAO , I have to say that my home theater sound be up there with the movie . in a word - awesome ! the bass be amazing and the clarity , outstanding . I could not be happier with these speaker .