hi yesterday i bought a paradigm sub for 460$ canadian it was a display model. no instructions or box. ok i have it working. well when i watch blade 2 on my dvd i get this scratching sound on a lot of the scenes. but other movies i didnt get nothing like this. 2. whats the point of having tower speakers if you cant use them. like i got these very old klipsh(sp?) about 10 years old they dont give off very much bass. but some. like my amp has to be put on small for the settings on the front speaker. i have a technics amp.